AT93C46DU3-UU-B [MICROCHIP]

EEPROM;
AT93C46DU3-UU-B
型号: AT93C46DU3-UU-B
厂家: MICROCHIP    MICROCHIP
描述:

EEPROM

可编程只读存储器 电动程控只读存储器 电可擦编程只读存储器 时钟 内存集成电路
文件: 总36页 (文件大小:1106K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
AT93C46D/AT93C46E  
Three-wire Serial EEPROM 1-Kbit (128 x 8 or 64 x 16)  
Features  
• Low-Voltage Operation:  
– VCC = 1.8V to 5.5V  
• User-Selectable Internally Organized as 128 x 8 (1K) or 64 x 16 (1K)  
• Non-Selectable Internal Organization as 64 x 16 (1K), AT93C46E Only  
• Industrial Temperature Range: -40°C to +85°C  
• 2 MHz Clock Rate (5V)  
• Self-Timed Write Cycle within 5 ms Maximum  
• High Reliability:  
– Endurance: 1,000,000 write cycles  
– Data retention: 100 years  
• Green Package Options (Lead-free/Halide-free/RoHS compliant)  
• Die Sale Options: Wafer Form and Tape and Reel  
Packages  
• 8-lead SOIC, 8-lead TSSOP, 8-pad UDFN, 8-lead PDIP and 8-ball VFBGA  
DS20006224A-page 1  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Table of Contents  
Features.......................................................................................................................... 1  
Packages.........................................................................................................................1  
1. Package Types (not to scale).................................................................................... 4  
2. Pin Descriptions.........................................................................................................5  
2.1. Chip Select (CS)...........................................................................................................................5  
2.2. Serial Data Clock (SK)................................................................................................................. 5  
2.3. Serial Data Input (DI)....................................................................................................................5  
2.4. Serial Data Output (DO)...............................................................................................................5  
2.5. Ground (GND)..............................................................................................................................6  
2.6. Internal Organization (ORG)........................................................................................................ 6  
2.7. Device Power Supply (VCC)......................................................................................................... 6  
3. Description.................................................................................................................7  
3.1. Block Diagram..............................................................................................................................7  
4. Electrical Characteristics........................................................................................... 8  
4.1. Absolute Maximum Ratings..........................................................................................................8  
4.2. DC and AC Operating Range.......................................................................................................8  
4.3. DC Characteristics....................................................................................................................... 8  
4.4. AC Characteristics........................................................................................................................9  
4.5. Synchronous Data Timing.......................................................................................................... 11  
4.6. Electrical Specifications..............................................................................................................11  
5. Device Commands and Addressing........................................................................ 13  
5.1. READ......................................................................................................................................... 13  
5.2. Erase/Write Enable (EWEN)...................................................................................................... 14  
5.3. Erase/Write Disable (EWDS)..................................................................................................... 14  
5.4. ERASE....................................................................................................................................... 15  
5.5. WRITE........................................................................................................................................15  
5.6. Write All (WRAL)........................................................................................................................ 16  
5.7. Erase All (ERAL)........................................................................................................................ 16  
6. Packaging Information.............................................................................................18  
6.1. Package Marking Information.....................................................................................................18  
7. Revision History.......................................................................................................30  
The Microchip Website..................................................................................................32  
Product Change Notification Service.............................................................................32  
Customer Support......................................................................................................... 32  
Product Identification System........................................................................................33  
DS20006224A-page 2  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Microchip Devices Code Protection Feature................................................................. 33  
Legal Notice...................................................................................................................34  
Trademarks................................................................................................................... 34  
Quality Management System........................................................................................ 35  
Worldwide Sales and Service........................................................................................36  
DS20006224A-page 3  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Package Types (not to scale)  
1.  
Package Types (not to scale)  
8-pad UDFN(1)  
8-lead PDIP/SOIC/TSSOP  
(Top View)  
(Top View)  
CS  
1
2
8
7
Vcc  
CS  
1
8
Vcc  
SK  
DI  
2
3
4
7
6
5
NC  
SK  
DI  
NC  
ORG(2)  
GND  
3
4
6
5
ORG(2)  
GND  
DO  
DO  
8-ball VFBGA(1)  
(Top View)  
1
2
3
4
8
7
6
5
Vcc  
CS  
SK  
NC  
DI  
ORG  
GND  
DO  
Note:ꢀ  
1. This package is only available on the AT93C46D.  
2. ORG pin is No Connect (NC) on the AT93C46E device.  
DS20006224A-page 4  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Pin Descriptions  
2.  
Pin Descriptions  
The descriptions of the pins are listed in Table 2-1.  
Table 2-1.ꢀPin Function Table  
Name  
8Lead  
PDIP  
8Lead  
SOIC  
8Lead  
TSSOP  
8Pad  
UDFN  
8-Ball  
VFBGA  
Function  
Chip Select  
(1)  
CS  
SK  
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Serial Data Clock  
Serial Data Input  
Serial Data Output  
Ground  
DI  
DO  
GND  
(2)  
ORG  
NC  
Internal Organization  
No Connect  
V
Device Power Supply  
CC  
Note:ꢀ  
1. The exposed pad on this package can be connected to GND or left floating.  
2. The Internal Organization (ORG) pin is a No Connect (NC) on the AT93C46E device.  
2.1  
2.2  
Chip Select (CS)  
The Chip Select (CS) pin is used to control device selection. The AT93C46D/AT93C46E is selected when  
the CS pin is high. When the device is not selected, data will not be accepted via the Serial Data Input  
(DI) pin, and the Serial Output (DO) pin will remain in a high-impedance state.  
Serial Data Clock (SK)  
The Serial Data Clock (SK) pin is used to synchronize the communication between a master and the  
AT93C46D/AT93C46E. Instructions, addresses or data present on the Serial Data Input (DI) pin is latched  
in on the rising edge of SK, while output on the Serial Data Output (DO) pin is also clocked out on the  
rising edge of SK.  
2.3  
2.4  
Serial Data Input (DI)  
The Serial Data Input (DI) pin is used to transfer data into the device. It receives instructions, addresses  
and data. Data is latched on the rising edge of the Serial Data Clock (SK).  
Serial Data Output (DO)  
The Serial Data Output (DO) pin is used to transfer data out of the AT93C46D/AT93C46E. During a read  
sequence, data is shifted out on this pin after the rising edge of the Serial Data Clock (SK).  
This pin also outputs the Ready/Busy status of the part if CS is brought high after being low for a  
minimum of tcs and an erase or write operation has been initiated.  
DS20006224A-page 5  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Pin Descriptions  
2.5  
2.6  
Ground (GND)  
The ground reference for the power supply. The Ground (GND) pin should be connected to the system  
ground.  
Internal Organization (ORG)  
The Internal Organization (ORG) pin is used to select between the x16 or x8 memory organizations of the  
device. When the ORG pin is tied to VCC, the x16 memory organization is selected. When the ORG pin is  
tied to VSS, the x8 memory organization is selected.  
If the ORG pin is left unconnected and the application does not load the input beyond the capability of the  
internal 1 MΩ pull-up resistor, then the x16 organization is selected.  
Note:ꢀ This pin is a No Connect (NC) on the AT93C46E.  
2.7  
Device Power Supply (VCC)  
The Device Power Supply (VCC) pin is used to supply the source voltage to the device. Operations at  
invalid VCC voltages may produce spurious results and should not be attempted.  
DS20006224A-page 6  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Description  
3.  
Description  
The AT93C46D provides 1,024 bits of Serial Electrically Erasable and Programmable Read-Only Memory  
(EEPROM) organized as 64 words of 16 bits each (when the ORG pin is connected to VCC) and 128  
words of 8 bits each (when the ORG pin is tied to ground). The device is optimized for use in many  
industrial and commercial applications where lowpower and lowvoltage operations are essential. The  
AT93C46D is available in space-saving 8-lead SOIC, 8-lead TSSOP, 8-pad UDFN, 8-lead PDIP, and 8-  
ball VFBGA packages. All packages operate from 1.8V to 5.5V.  
The AT93C46E provides 1,024 bits of Serial Electrically Erasable and Programmable Read-Only Memory  
(EEPROM) organized as 64 words of 16 bits each only. The AT93C46E does not offer the ORG pin so  
organization is not user-selectable on this device. The device is optimized for use in many industrial and  
commercial applications where lowpower and lowvoltage operations are essential. The AT93C46E is  
also available in space-saving 8-lead SOIC, 8-lead TSSOP, and 8-lead PDIP packages. All packages  
operate from 1.8V to 5.5V.  
The AT93C46D/AT93C46E is enabled through the Chip Select (CS) pin and accessed via a three-wire  
serial interface consisting of Data Input (DI), Data Output (DO), and Serial Data Clock (SK). Upon  
receiving a READ instruction at DI, the address is decoded, and the data is clocked out serially on the DO  
pin. The write cycle is completely self-timed, and no separate erase cycle is required before write. The  
write cycle is only enabled when the part is in the Erase/Write Enable state. When CS is brought high  
following the initiation of a write cycle, the DO pin outputs the Ready/Busy status of the part.  
3.1  
Block Diagram  
Memory  
System Control  
Module  
Power-on  
Reset  
Generator  
CS  
SK  
VCC  
High Voltage  
Generation  
Circuit  
EEPROM Array  
128 x 8(1)  
or  
64 x 16  
Address Register  
and Counter  
Column Decoder  
Data Register  
DI  
ORG(1)  
Clock  
Generator  
DO  
GND  
Output  
Buffer  
Note:ꢀ  
1. The organization of the AT93C46E is not selectable by the ORG pin and defaults to 64x16. If the  
x16 organization is the mode of choice and pin 6 (ORG) is left unconnected, Microchip  
recommends using AT93C46E device.  
DS20006224A-page 7  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Electrical Characteristics  
4.  
Electrical Characteristics  
4.1  
Absolute Maximum Ratings  
Temperature under bias  
Storage temperature  
VCC  
-55°C to +125°C  
-65°C to +150°C  
6.25V  
Voltage on any pin with respect to ground  
DC output current  
-1.0V to +7.0V  
5.0 mA  
ESD protection  
2 kV  
Note:ꢀ Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to  
the device. This is a stress rating only and functional operation of the device at these or any other  
conditions above those indicated in the operation listings of this specification is not implied. Exposure to  
absolute maximum rating conditions for extended periods may affect device reliability.  
4.2  
4.3  
DC and AC Operating Range  
Table 4-1.ꢀDC and AC Operating Range  
AT93C46D/AT93C46E  
Operating Temperature (Case)  
VCC Power Supply  
Industrial Temperature Range  
Low-Voltage Grade  
-40°C to +85°C  
1.8V to 5.5V  
DC Characteristics  
Table 4-2.ꢀDC Characteristics(1)  
Parameter  
Symbol  
Minimum  
Typical  
Maximum Units Test Conditions  
Supply Voltage  
Supply Voltage  
Supply Voltage  
Supply Current  
Supply Current  
V
V
V
1.8  
2.7  
4.5  
5.5  
5.5  
5.5  
2.0  
2.0  
1.0  
V
V
CC1  
CC2  
CC3  
CC1  
CC2  
V
I
I
0.5  
0.5  
0.4  
mA  
mA  
μA  
V
V
V
= 5.0V, Read at 1 MHz  
= 5.0V, Write at 1 MHz  
= 1.8V, CS = 0V  
CC  
CC  
CC  
Standby Current  
(1.8V Option)  
I
I
I
SB1  
SB2  
SB3  
Standby Current  
(2.7V Option)  
6.0  
10.0  
15.0  
μA  
μA  
V
V
= 2.7V, CS = 0V  
= 5.0V, CS = 0V  
CC  
CC  
Standby Current  
(5.0V Option)  
10.0  
DS20006224A-page 8  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Electrical Characteristics  
...........continued  
Parameter  
Symbol  
Minimum  
Typical  
Maximum Units Test Conditions  
Input Leakage  
Current  
I
0.1  
1.0  
1.0  
0.8  
μA  
V
= 0 to V  
IL  
IN  
IN  
CC  
CC  
Output Leakage  
Current  
I
0.1  
μA  
V
= 0 to V  
LO  
Input LowVoltage  
Input HighVoltage  
Input LowVoltage  
Input HighVoltage  
V
-0.6  
2.0  
V
V
V
V
V
2.7V ≤ V  
2.7V ≤ V  
1.8V ≤ V  
1.8V ≤ V  
2.7V ≤ V  
≤ 5.5V (Note 2)  
≤ 5.5V (Note 2)  
≤ 2.7V (Note 2)  
≤ 2.7V (Note 2)  
≤ 5.5V,  
IL1  
CC  
CC  
CC  
CC  
CC  
V
V
+ 1  
IH1  
CC  
V x 0.3  
CC  
V
-0.6  
IL2  
V
V
x 0.7  
V
+ 1  
IH2  
CC  
CC  
Output  
V
0.4  
OL1  
LowVoltage  
I
= 2.1 mA  
OL  
Output  
HighVoltage  
V
2.4  
0.2  
V
V
V
2.7V ≤ V  
≤ 5.5V,  
OH1  
CC  
= -0.4 mA  
I
OH  
Output  
LowVoltage  
V
1.8V ≤ V  
≤ 2.7V,  
OL2  
CC  
= 0.15 mA  
I
OL  
Output  
HighVoltage  
V
V
- 0.2  
1.8V ≤ V  
≤ 2.7V,  
OH2  
CC  
CC  
= -100 µA  
I
OH  
Note:ꢀ  
1. Applicable over recommended operating range from: TA = -40°C to +85°C, VCC = 1.8V to 5.5V  
(unless otherwise noted).  
2. VIL min and VIH max are reference only and are not tested.  
4.4  
AC Characteristics  
Table 4-3.ꢀAC Characteristics(1)  
Parameter  
Symbol Minimum Typical Maximum  
Units Test Conditions  
Clock Frequency, SK  
fSK  
tSKH  
tSKL  
0
0
2
1
MHz  
MHz  
kHz  
ns  
4.5V ≤ VCC ≤ 5.5V  
2.7V ≤ VCC ≤ 5.5V  
1.8V ≤ VCC ≤ 5.5V  
4.5V ≤ VCC ≤ 5.5V  
2.7V ≤ VCC ≤ 5.5V  
1.8V ≤ VCC ≤ 5.5V  
4.5V ≤ VCC ≤ 5.5V  
2.7V ≤ VCC ≤ 5.5V  
1.8V ≤ VCC ≤ 5.5V  
0
250  
High Time, SK  
Low Time, SK  
250  
250  
1000  
250  
250  
1000  
ns  
ns  
ns  
ns  
ns  
DS20006224A-page 9  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Electrical Characteristics  
...........continued  
Parameter  
Symbol Minimum Typical Maximum  
Units Test Conditions  
Minimum CS Low  
Time  
tCS  
250  
250  
1000  
50  
ns  
ns  
ns  
ns  
4.5V ≤ VCC ≤ 5.5V  
2.7V ≤ VCC ≤ 5.5V  
1.8V ≤ VCC ≤ 5.5V  
CS Setup Time  
tCSS  
4.5V ≤ VCC ≤ 5.5V,  
Relative to SK  
50  
ns  
ns  
ns  
ns  
ns  
2.7V ≤ VCC ≤ 5.5V,  
Relative to SK  
200  
100  
100  
400  
1.8V ≤ VCC ≤ 5.5V,  
Relative to SK  
DI Setup Time  
tDIS  
4.5V ≤ VCC ≤ 5.5V,  
Relative to SK  
2.7V ≤ VCC ≤ 5.5V,  
Relative to SK  
1.8V ≤ VCC ≤ 5.5V,  
Relative to SK  
CS Hold Time  
DI Hold Time  
tCSH  
tDIH  
0
ns  
ns  
Relative to SK  
100  
4.5V ≤ VCC ≤ 5.5V,  
Relative to SK  
100  
400  
ns  
ns  
2.7V ≤ VCC ≤ 5.5V,  
Relative to SK  
1.8V ≤ VCC ≤ 5.5V,  
Relative to SK  
Output Delay to 1  
Output Delay to 0  
CS to Status Valid  
tPD1  
tPD0  
tSV  
250  
250  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
4.5V ≤ VCC ≤ 5.5V  
2.7V ≤ VCC ≤ 5.5V  
1.8V ≤ VCC ≤ 5.5V  
4.5V ≤ VCC ≤ 5.5V  
2.7V ≤ VCC ≤ 5.5V  
1.8V ≤ VCC ≤ 5.5V  
4.5V ≤ VCC ≤ 5.5V  
2.7V ≤ VCC ≤ 5.5V  
1.8V ≤ VCC ≤ 5.5V,  
1000  
250  
250  
1000  
250  
250  
1000  
DS20006224A-page 10  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Electrical Characteristics  
...........continued  
Parameter  
Symbol Minimum Typical Maximum  
Units Test Conditions  
CS to DO in  
Highimpedance  
tDF  
3
100  
250  
400  
5
ns  
ns  
ns  
ms  
4.5V ≤ VCC ≤ 5.5V,  
CS = VIL  
2.7V ≤ VCC ≤ 5.5V,  
CS = VIL  
1.8V ≤ VCC ≤ 5.5V,  
CS = VIL  
Write Cycle Time  
tWP  
0.1  
1.8V ≤ VCC ≤ 5.5V  
Note:ꢀ  
1. Applicable over recommended operating range from TA = -40°C to +85°C, VCC = As Specified, CL =  
1 TTL Gate and 100 pF (unless otherwise noted).  
4.5  
Synchronous Data Timing  
Figure 4-1.ꢀSynchronous Data Timing  
VIH  
VIL  
(1)  
1
µs  
CS  
t
t
t
t
CSH  
SKH  
CSS  
SKL  
VIH  
VIL  
SK  
t
t
DIH  
DIS  
VIH  
VIL  
DI  
t
t
DF  
DF  
t
t
PD0  
PD1  
VOH  
VOL  
DO (Read)  
t
SV  
VOH  
VOL  
DO (Program)  
Status Valid  
Note:ꢀ  
1. This is the minimum SK period.  
4.6  
Electrical Specifications  
4.6.1  
Power-Up Requirements and Reset Behavior  
During a power-up sequence, the VCC supplied to the AT93C46D/AT93C46E should monotonically rise  
from GND to the minimum VCC level, as specified in Table 4-1, with a slew rate no faster than 0.1 V/µs.  
4.6.1.1 Device Reset  
To prevent inadvertent write operations or any other spurious events from occurring during a power-up  
sequence, the AT93C46D/AT93C46E includes a Power-on Reset (POR) circuit. Upon power-up, the  
device will not respond to any commands until the VCC level crosses the internal voltage threshold (VPOR  
that brings the device out of Reset and into Standby mode.  
)
DS20006224A-page 11  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Electrical Characteristics  
The system designer must ensure the instructions are not sent to the device until the VCC supply has  
reached a stable value greater than or equal to the minimum VCC level. Additionally, once the VCC is  
greater than or equal to the minimum VCC level, the bus master must wait at least tPUP before sending the  
first command to the device. See Power-up Conditions(1) for the values associated with these power-up  
parameters.  
Table 4-4.ꢀPower-up Conditions(1)  
Symbol  
Parameter  
Min. Max. Units  
tPUP  
Time required after VCC is stable before the device can accept commands 100  
1.5  
µs  
V
VPOR Power-on Reset Threshold Voltage  
tPOFF Minimum time at VCC = 0V between power cycles  
500  
ms  
Note:ꢀ  
1. These parameters are characterized but they are not 100% tested in production.  
If an event occurs in the system where the VCC level supplied to the AT93C46D/AT93C46E drops below  
the maximum VPOR level specified, it is recommended that a full power cycle sequence be performed by  
first driving the VCC pin to GND, waiting at least the minimum tPOFF time and then performing a new  
power-up sequence in compliance with the requirements defined in this section.  
4.6.2  
Pin Capacitance  
Table 4-5.ꢀPin Capacitance(1)  
Symbol Test Condition  
Max.  
Units Conditions  
COUT  
CIN  
Output Capacitance (DO)  
Input Capacitance (CS, SK, DI, ORG)  
5
5
pF  
pF  
VOUT = 0V  
VIN = 0V  
Note:ꢀ  
1. This parameter is characterized but is not 100% tested in production.  
4.6.3  
EEPROM Cell Performance Characteristics  
Table 4-6.ꢀEEPROM Cell Performance Characteristics  
Operation  
Test Condition  
TA = 25°C, VCC = 5.0V  
TA = 55°C  
Min.  
1,000,000  
100  
Max.  
Units  
Write Cycles  
Years  
Write Endurance(1)  
Data Retention(1)  
Note:ꢀ  
1. Performance is determined through characterization and the qualification process.  
DS20006224A-page 12  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Device Commands and Addressing  
5.  
Device Commands and Addressing  
The AT93C46D/AT93C46E is accessed via a simple and versatile three-wire serial communication  
interface. Device operation is controlled by seven instructions issued by the Host processor. A valid  
instruction starts with a rising edge of CS and consists of a Start bit (SB), followed by the appropriate  
opcode, and the desired memory address location.  
Table 5-1.ꢀAT93C46D/AT93C46E Instruction Set  
Instruction  
SB  
Opcode  
Address  
Data  
Comments  
(1)  
X8  
(1)  
X16  
X8  
X16  
READ  
EWEN  
1
1
10  
00  
A A  
A A  
5 0  
Reads data stored in memory at  
specified address.  
6
0
11XXXXXXX  
11XXXXXX  
Write Enable must precede all  
programming modes.  
ERASE  
WRITE  
ERAL  
1
1
1
11  
01  
00  
A A  
A A  
Erases memory location A A .  
N 0  
6
0
0
5
0
0
A A  
6
A A  
5
D D  
D
D  
Writes memory location A A .  
N 0  
7
0
15  
0
10XXXXXXX  
01XXXXXXX  
00XXXXXXX  
10XXXXXX  
01XXXXXX  
00XXXXXX  
Erases all memory locations. Valid  
only at V . See Table 4-2.  
CC3  
Writes all memory locations. Valid  
only at V . See Table 4-2  
WRAL  
EWDS  
1
1
00  
00  
D D  
D
15  
D  
0
7
0
CC3  
Disables all programming  
instructions.  
Note:ꢀ  
1. The X’ in the address field represent a “don’t care” bit, and must be sent to the device.  
Table 5-2.ꢀOrganization Key for Timing Diagrams  
I/O  
AT93C46D/AT93C46E (1K)  
x8(1)  
A6  
x16  
A5  
AN  
DN  
D7  
D15  
Note:ꢀ  
1. The internal organization of the AT93C46E is x16 only.  
5.1  
READ  
The READ instruction contains the address code for the memory location to be read. After the instruction  
and address are decoded, data from the selected memory location is available at the DO pin. Output data  
changes are synchronized with the rising edges of the SK pin.  
Note:ꢀ A dummy bit (logic ‘0’) precedes the 8-bit or 16-bit data output string.  
DS20006224A-page 13  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Device Commands and Addressing  
Figure 5-1.ꢀREAD Timing  
tCS  
CS  
SK  
DI  
1
1
0
AN  
A0  
High-impedance  
DO  
0
DN  
D0  
5.2  
Erase/Write Enable (EWEN)  
To ensure data integrity, the part automatically goes into the Erase/Write Disable (EWDS) state when  
power is first applied. An Erase/Write Enable (EWEN) instruction must be executed first before any  
programming instructions can be carried out.  
Note:ꢀ Once in the write enabled state, programming remains enabled until an EWDS instruction is  
executed, or VCC power is removed from the part.  
Figure 5-2.ꢀEWEN Timing  
t
CS  
CS  
SK  
DI  
...  
0
1
1
1
0
5.3  
Erase/Write Disable (EWDS)  
To protect against accidental data disturbance, the Erase/Write Disable (EWDS) instruction disables all  
programming modes and should be executed after all programming operations. The operation of the  
READ instruction is independent of both the EWEN and EWDS instructions and can be executed at any time.  
DS20006224A-page 14  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Device Commands and Addressing  
Figure 5-3.ꢀEWDS Timing  
tCS  
CS  
SK  
...  
0
0
0
1
0
DI  
5.4  
ERASE  
The ERASE instruction programs all bits in the specified memory location to the logic ‘1’ state. The self-  
timed erase cycle starts once the ERASE instruction and address are decoded. The DO pin outputs the  
Ready/Busy status of the part if CS is brought high after being kept low for a minimum of tCS. A logic ‘1’ at  
the DO pin indicates that the selected memory location has been erased, and the part is ready for  
another instruction.  
Figure 5-4.ꢀERASE Timing  
t
CS  
Standby  
Check  
Status  
CS  
SK  
A0  
1
1
1
AN  
...  
AN-1 AN-2  
DI  
t
DF  
t
SV  
High-impedance  
High-impedance  
Busy  
DO  
Ready  
t
WP  
5.5  
WRITE  
The WRITE instruction contains the 8 bits or 16 bits of data to be written into the specified memory  
location. The self-timed programming cycle, tWP, starts after the last bit of data is received at DI pin . The  
DO pin outputs the Ready/Busy status of the part if CS is brought high after being kept low for a minimum  
of tCS. A logic ‘0’ at DO indicates that programming is still in progress. A logic ‘1’ indicates that the  
memory location at the specified address has been written with the data pattern contained in the  
instruction, and the part is ready for further instructions. A Ready/Busy status cannot be obtained if CS is  
brought high after the end of the self-timed programming cycle, tWP  
.
DS20006224A-page 15  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Device Commands and Addressing  
Figure 5-5.ꢀWRITE Timing  
t
CS  
CS  
SK  
...  
...  
AN  
DN  
1
0
1
A0  
D0  
DI  
High-impedance  
DO  
Busy  
Ready  
t
WP  
5.6  
Write All (WRAL)  
The Write All (WRAL) instruction programs all memory locations with the data patterns specified in the  
instruction. The DO pin outputs the Ready/Busy status of the part if CS is brought high after being kept  
low for a minimum of tCS  
.
Note:ꢀ The WRAL instruction is valid only at VCC3 (see Table 4-2).  
Figure 5-6.ꢀWRAL Timing  
tCS  
CS  
SK  
1
0
0
0
1
...  
D
N
...  
D0  
DI  
High-impedance  
DO  
Busy  
Ready  
tWP  
5.7  
Erase All (ERAL)  
The Erase All (ERAL) instruction programs every bit in the memory array to the logic ‘1’ state and is  
primarily used for testing purposes. The DO pin outputs the Ready/Busy status of the part if CS is brought  
high after being kept low for a minimum of tCS  
.
Note:ꢀ The ERAL instruction is valid only at VCC3 (see Table 4-2).  
DS20006224A-page 16  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Device Commands and Addressing  
Figure 5-7.ꢀERAL Timing  
t
CS  
Standby  
Check  
Status  
CS  
SK  
1
0
0
1
0
DI  
t
DF  
t
SV  
High-impedance  
High-impedance  
DO  
Busy  
Ready  
t
WP  
DS20006224A-page 17  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Packaging Information  
6.  
Packaging Information  
6.1  
Package Marking Information  
AT93C46D and AT93C46E: Package Marking Information  
8-lead TSSOP  
8-lead SOIC  
8-lead PDIP  
ATMLUYWW  
ATMLHYWW  
###% CO  
YYWWNNN  
ATHYWW  
###% CO  
YYWWNNN  
###%CO  
YYWWNNN  
8-ball VFBGA  
8-pad UDFN  
2.0 x 3.0 mm Body  
1.5 x 2.0 mm Body  
###  
###U  
WNNN  
H%  
NNN  
Note 1:  
designates pin 1  
Note 2: Package drawings are not to scale  
Catalog Number Truncation  
AT93C46D  
Truncation Code ###: 46D  
Truncation Code ###: 46E  
AT93C46E  
Date Codes  
Voltages  
YY = Year  
16: 2016  
17: 2017  
18: 2018  
19: 2019  
Y = Year  
WW = Work Week of Assembly  
% = Minimum Voltage  
L: 1.8V min  
20: 2020  
21: 2021  
22: 2022  
23: 2023  
6: 2016  
7: 2017  
8: 2018  
9: 2019  
0: 2020  
1: 2021  
2: 2022  
3: 2023  
02: Week 2  
04: Week 4  
...  
52: Week 52  
Country of Origin  
Device Grade  
H or U: Industrial Grade  
Atmel Truncation  
CO = Country of Origin  
AT: Atmel  
ATM: Atmel  
ATML: Atmel  
Lot Number or Trace Code  
NNN = Alphanumeric Trace Code (2 Characters for Small Packages)  
DS20006224A-page 18  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Packaging Information  
8-Lead Plastic Small Outline (SN) - Narrow, 3.90 mm (.150 In.) Body [SOIC]  
Note: For the most current package drawings, please see the Microchip Packaging Specification located at  
http://www.microchip.com/packaging  
2X  
0.10 C A–B  
D
A
D
NOTE 5  
N
E
2
E1  
2
E1  
E
1
2
NOTE 1  
e
NX b  
0.25  
C A–B D  
B
NOTE 5  
TOP VIEW  
0.10 C  
0.10 C  
C
A2  
A
SEATING  
PLANE  
8X  
SIDE VIEW  
A1  
h
R0.13  
R0.13  
h
H
0.23  
L
SEE VIEW C  
(L1)  
VIEW A–A  
VIEW C  
Microchip Technology Drawing No. C04-057-SN Rev E Sheet 1 of 2  
DS20006224A-page 19  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Packaging Information  
8-Lead Plastic Small Outline (SN) - Narrow, 3.90 mm (.150 In.) Body [SOIC]  
Note: For the most current package drawings, please see the Microchip Packaging Specification located at  
http://www.microchip.com/packaging  
Units  
MILLIMETERS  
Dimension Limits  
MIN  
NOM  
MAX  
Number of Pins  
Pitch  
N
e
8
1.27 BSC  
Overall Height  
Molded Package Thickness  
Standoff  
Overall Width  
A
-
-
-
-
1.75  
-
0.25  
A2  
A1  
E
1.25  
0.10  
§
6.00 BSC  
Molded Package Width  
Overall Length  
E1  
D
3.90 BSC  
4.90 BSC  
Chamfer (Optional)  
Foot Length  
h
L
0.25  
0.40  
-
-
0.50  
1.27  
Footprint  
L1  
1.04 REF  
Foot Angle  
Lead Thickness  
Lead Width  
Mold Draft Angle Top  
Mold Draft Angle Bottom  
0°  
0.17  
0.31  
5°  
-
-
-
-
-
8°  
c
0.25  
0.51  
15°  
b
5°  
15°  
Notes:  
1. Pin 1 visual index feature may vary, but must be located within the hatched area.  
2. § Significant Characteristic  
3. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or  
protrusions shall not exceed 0.15mm per side.  
4. Dimensioning and tolerancing per ASME Y14.5M  
BSC: Basic Dimension. Theoretically exact value shown without tolerances.  
REF: Reference Dimension, usually without tolerance, for information purposes only.  
5. Datums A & B to be determined at Datum H.  
Microchip Technology Drawing No. C04-057-SN Rev E Sheet 2 of 2  
DS20006224A-page 20  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Packaging Information  
8-Lead Plastic Small Outline (SN) - Narrow, 3.90 mm Body [SOIC]  
Note: For the most current package drawings, please see the Microchip Packaging Specification located at  
http://www.microchip.com/packaging  
SILK SCREEN  
C
Y1  
X1  
E
RECOMMENDED LAND PATTERN  
Units  
Dimension Limits  
MILLIMETERS  
NOM  
MIN  
MAX  
Contact Pitch  
E
C
X1  
Y1  
1.27 BSC  
5.40  
Contact Pad Spacing  
Contact Pad Width (X8)  
Contact Pad Length (X8)  
0.60  
1.55  
Notes:  
1. Dimensioning and tolerancing per ASME Y14.5M  
BSC: Basic Dimension. Theoretically exact value shown without tolerances.  
Microchip Technology Drawing C04-2057-SN Rev E  
DS20006224A-page 21  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Packaging Information  
8-Lead Plastic Thin Shrink Small Outline (ST) – 4.4 mm Body [TSSOP]  
Note: For the most current package drawings, please see the Microchip Packaging Specification located at  
http://www.microchip.com/packaging  
D
N
E
E1  
NOTE 1  
1
2
b
e
c
φ
A
A2  
A1  
L
L1  
Units  
MILLIMETERS  
Dimension Limits  
MIN  
NOM  
MAX  
Number of Pins  
Pitch  
N
e
8
0.65 BSC  
Overall Height  
A
1.20  
1.05  
0.15  
Molded Package Thickness  
Standoff  
A2  
A1  
E
0.80  
0.05  
1.00  
Overall Width  
6.40 BSC  
Molded Package Width  
Molded Package Length  
Foot Length  
E1  
D
4.30  
2.90  
0.45  
4.40  
4.50  
3.10  
0.75  
3.00  
L
0.60  
Footprint  
L1  
φ
1.00 REF  
Foot Angle  
0°  
8°  
Lead Thickness  
c
0.09  
0.20  
0.30  
Lead Width  
b
0.19  
Notes:  
1. Pin 1 visual index feature may vary, but must be located within the hatched area.  
2. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.15 mm per side.  
3. Dimensioning and tolerancing per ASME Y14.5M.  
BSC: Basic Dimension. Theoretically exact value shown without tolerances.  
REF: Reference Dimension, usually without tolerance, for information purposes only.  
Microchip Technology Drawing C04-086B  
DS20006224A-page 22  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Packaging Information  
Note: For the most current package drawings, please see the Microchip Packaging Specification located at  
http://www.microchip.com/packaging  
DS20006224A-page 23  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Packaging Information  
8-Lead Ultra Thin Plastic Dual Flat, No Lead Package (Q4B) - 2x3 mm Body [UDFN]  
Atmel Legacy YNZ Package  
Note: For the most current package drawings, please see the Microchip Packaging Specification located at  
http://www.microchip.com/packaging  
D
A
B
E
N
(DATUM A)  
(DATUM B)  
NOTE 1  
2X  
0.10 C  
1
2
2X  
TOP VIEW  
0.10 C  
A1  
0.10 C  
0.08 C  
C
A
SEATING  
PLANE  
8X  
(A3)  
SIDE VIEW  
0.10  
C A B  
D2  
e
2
1
2
0.10  
K
C A B  
E2  
N
L
8X b  
0.10  
0.05  
C A B  
e
C
BOTTOM VIEW  
Microchip Technology Drawing C04-21355-Q4B Rev A Sheet 1 of 2  
DS20006224A-page 24  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Packaging Information  
8-Lead Ultra Thin Plastic Dual Flat, No Lead Package (Q4B) - 2x3 mm Body [UDFN]  
Atmel Legacy YNZ Package  
Note: For the most current package drawings, please see the Microchip Packaging Specification located at  
http://www.microchip.com/packaging  
Units  
Dimension Limits  
MILLIMETERS  
NOM  
MIN  
MAX  
Number of Terminals  
Pitch  
Overall Height  
Standoff  
Terminal Thickness  
Overall Length  
Exposed Pad Length  
Overall Width  
Exposed Pad Width  
Terminal Width  
Terminal Length  
N
e
8
0.50 BSC  
0.55  
0.02  
0.152 REF  
2.00 BSC  
1.50  
3.00 BSC  
1.30  
A
A1  
A3  
D
D2  
E
E2  
b
L
0.50  
0.00  
0.60  
0.05  
1.40  
1.60  
1.20  
0.18  
0.35  
0.20  
1.40  
0.30  
0.45  
-
0.25  
0.40  
-
Terminal-to-Exposed-Pad  
K
Notes:  
1. Pin 1 visual index feature may vary, but must be located within the hatched area.  
2. Package is saw singulated  
3. Dimensioning and tolerancing per ASME Y14.5M  
BSC: Basic Dimension. Theoretically exact value shown without tolerances.  
REF: Reference Dimension, usually without tolerance, for information purposes only.  
Microchip Technology Drawing C04-21355-Q4B Rev A Sheet 2 of 2  
DS20006224A-page 25  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Packaging Information  
8-Lead Ultra Thin Plastic Dual Flat, No Lead Package (Q4B) - 2x3 mm Body [UDFN]  
Atmel Legacy YNZ Package  
Note: For the most current package drawings, please see the Microchip Packaging Specification located at  
http://www.microchip.com/packaging  
X2  
EV  
G2  
8
ØV  
C
Y2  
G1  
Y1  
1
2
SILK SCREEN  
X1  
E
RECOMMENDED LAND PATTERN  
Units  
Dimension Limits  
E
MILLIMETERS  
NOM  
0.50 BSC  
MIN  
MAX  
Contact Pitch  
Optional Center Pad Width  
Optional Center Pad Length  
Contact Pad Spacing  
X2  
Y2  
C
1.60  
1.40  
2.90  
Contact Pad Width (X8)  
Contact Pad Length (X8)  
Contact Pad to Center Pad (X8)  
Contact Pad to Contact Pad (X6)  
Thermal Via Diameter  
X1  
Y1  
G1  
G2  
V
0.30  
0.85  
0.20  
0.33  
0.30  
1.00  
Thermal Via Pitch  
EV  
Notes:  
1. Dimensioning and tolerancing per ASME Y14.5M  
BSC: Basic Dimension. Theoretically exact value shown without tolerances.  
2. For best soldering results, thermal vias, if used, should be filled or tented to avoid solder loss during  
reflow process  
Microchip Technology Drawing C04-21355-Q4B Rev A  
DS20006224A-page 26  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Packaging Information  
8-Lead Plastic Dual In-Line (P) - 300 mil Body [PDIP]  
Note: For the most current package drawings, please see the Microchip Packaging Specification located at  
http://www.microchip.com/packaging  
D
A
N
B
E1  
NOTE 1  
1
2
TOP VIEW  
E
A2  
A
C
PLANE  
L
c
A1  
e
eB  
8X b1  
8X b  
.010  
C
SIDE VIEW  
END VIEW  
Microchip Technology Drawing No. C04-018D Sheet 1 of 2  
DS20006224A-page 27  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Packaging Information  
8-Lead Plastic Dual In-Line (P) - 300 mil Body [PDIP]  
Note: For the most current package drawings, please see the Microchip Packaging Specification located at  
http://www.microchip.com/packaging  
ALTERNATE LEAD DESIGN  
(VENDOR DEPENDENT)  
DATUM A  
DATUM A  
b
b
e
2
e
2
e
e
Units  
Dimension Limits  
INCHES  
NOM  
8
.100 BSC  
-
MIN  
MAX  
Number of Pins  
Pitch  
N
e
Top to Seating Plane  
A
-
.210  
.195  
-
Molded Package Thickness  
Base to Seating Plane  
Shoulder to Shoulder Width  
Molded Package Width  
Overall Length  
Tip to Seating Plane  
Lead Thickness  
Upper Lead Width  
A2  
A1  
E
E1  
D
.115  
.015  
.290  
.240  
.348  
.115  
.008  
.040  
.014  
-
.130  
-
.310  
.250  
.365  
.130  
.010  
.060  
.018  
-
.325  
.280  
.400  
.150  
.015  
.070  
.022  
.430  
L
c
b1  
b
eB  
Lower Lead Width  
Overall Row Spacing  
§
Notes:  
1. Pin 1 visual index feature may vary, but must be located within the hatched area.  
2. § Significant Characteristic  
3. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or  
protrusions shall not exceed .010" per side.  
4. Dimensioning and tolerancing per ASME Y14.5M  
BSC: Basic Dimension. Theoretically exact value shown without tolerances.  
Microchip Technology Drawing No. C04-018D Sheet 2 of 2  
DS20006224A-page 28  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Packaging Information  
d
0.10 (4X)  
d
0.08 C  
f
0.10  
C
A
E
C
D
2.  
b
j
j
n 0.15m  
0.08m  
C
C
A B  
n
B
PIN 1 BALL PAD CORNER  
A1  
A2  
A
TOP VIEW  
SIDE VIEW  
PIN 1 BALL PAD CORNER  
4
3
1
2
d
(d1)  
6
5
8
7
COMMON DIMENSIONS  
(Unit of Measure - mm)  
e
(e1)  
SYMBOL  
NOM  
MIN  
MAX  
NOTE  
0.73  
0.09  
0.40  
0.20  
0.79  
0.85  
0.19  
0.50  
0.30  
A
A1  
A2  
b
BOTTOM VIEW  
8 SOLDER BALLS  
0.14  
0.45  
Notes:  
1. This drawing is for general information only.  
0.25  
2
1.50 BSC  
2.0 BSC  
0.50 BSC  
0.25 REF  
1.00 BSC  
0.25 REF  
D
E
2. Dimension ‘b’ is measured at maximum solder ball diameter.  
3. Solder ball composition shall be 95.5Sn-4.0Ag-.5Cu.  
e
e1  
d
d1  
7/1/14  
REV.  
TITLE  
DRAWING NO.  
8U3-1  
GPC  
GXU  
8U3-1, 8-ball, 1.50mm x 2.00mm body, 0.50mm pitch,  
Very Thin, Fine-Pitch Ball Grid Array Package (VFBGA)  
G
Note:ꢀ For the most current package drawings, please see the Microchip Packaging Specification located  
at http://www.microchip.com/packaging.  
DS20006224A-page 29  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Revision History  
7.  
Revision History  
Revision A (July 2019)  
Updated to the Microchip template. Microchip DS20006224 replaces Atmel documents 5193 and 5207.  
Updated Package Marking Information. Removed lead finish designation. Updated trace code format in  
package markings. Updated section content throughout for clarification. Updated the 8U3-1 VFBGA  
package drawing. Updated the PDIP, SOIC, TSSOP and UDFN package drawings to Microchip format.  
Atmel AT93C46E 5207 Revision F (January 2015)  
Updated ordering information section.  
Atmel AT93C46D 5193 Revision H (January 2015)  
Added the UDFN expanded quantity option and the ordering information section. Updated the 8MA2 and  
8P3 package drawings.  
Atmel AT93C46E 5207 Revision E (October 2014)  
Added the part markings and ordering code detail. Updated the package outline drawings and the 8A2 to  
8X. Updated the template, Atmel logos, and the disclaimer page.  
Atmel AT93C46D 5193 Revision G (August 2014)  
Updated package drawings, template, logos, and disclaimer page.  
Atmel AT93C46E 5207 Revision D (January 2008)  
Removed the ‘preliminary’ status.  
Atmel AT93C46D 5193 Revision F (January 2008)  
Removed the ‘preliminary’ status.  
Atmel AT93C46E 5207 Revision C (November 2007)  
Modified the ‘max’ value in AC Characteristics table.  
Atmel AT93C46D 5193 Revision E (November 2007)  
Modified the ‘max’ value in AC Characteristics table.  
Atmel AT93C46E 5207 Revision B (August 2007)  
Modified Part Marking Schemes.  
Atmel AT93C46D 5193 Revision D (August 2007)  
Moved Pinout figure. Added new feature for Die Sales. Modified Ordering Information table layout.  
Modified Park Marking Schemes.  
Atmel AT93C46D 5193 Revision C (June 2007)  
Updated to new template. Added Product Markup Scheme. Added Technical email contact. Corrected  
Figures 4 and 5.  
DS20006224A-page 30  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Revision History  
Atmel AT93C46D 5193 Revision B (February 2007)  
Added ‘Ultra Thin’ description to 8-lead Mini-MAP package.  
Atmel AT93C46E 5207 Revision A (January 2007)  
Initial document release.  
Atmel AT93C46D 5193 Revision A (January 2007)  
Initial document release.  
DS20006224A-page 31  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
The Microchip Website  
Microchip provides online support via our website at http://www.microchip.com/. This website is used to  
make files and information easily available to customers. Some of the content available includes:  
Product Support – Data sheets and errata, application notes and sample programs, design  
resources, user’s guides and hardware support documents, latest software releases and archived  
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General Technical Support – Frequently Asked Questions (FAQs), technical support requests,  
online discussion groups, Microchip design partner program member listing  
Business of Microchip – Product selector and ordering guides, latest Microchip press releases,  
listing of seminars and events, listings of Microchip sales offices, distributors and factory  
representatives  
Product Change Notification Service  
Microchip’s product change notification service helps keep customers current on Microchip products.  
Subscribers will receive email notification whenever there are changes, updates, revisions or errata  
related to a specified product family or development tool of interest.  
To register, go to http://www.microchip.com/pcn and follow the registration instructions.  
Customer Support  
Users of Microchip products can receive assistance through several channels:  
• Distributor or Representative  
• Local Sales Office  
• Embedded Solutions Engineer (ESE)  
Technical Support  
Customers should contact their distributor, representative or ESE for support. Local sales offices are also  
available to help customers. A listing of sales offices and locations is included in this document.  
Technical support is available through the web site at: http://www.microchip.com/support  
DS20006224A-page 32  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
Product Identification System  
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.  
A T 9 3 C 4 6 D N - S H - B  
Shipping Carrier Option  
B
T
E
= Bulk  
= Tape and Reel, Standard Quantity Option  
= Tape and Reel, Extended Quantity Option  
Product Family  
93C = Microwire-compatible  
Three-Wire Serial EEPROM  
Package Device Grade or  
Wafer/Die Thickness  
H or U = Industrial Temperature Range  
(-40°C to +85°C)  
Device Density  
46 = 1-Kilobit  
11  
= 11mil Wafer Thickness  
Device Organization  
D = User Selectable  
E = 16 x 64 Only  
Package Option  
S
T
Y
P
U
= SOIC  
= TSSOP  
= 2.0mm x 3.0mm UDFN  
= PDIP  
= VFBGA  
Package Variation (if applicable)  
N = SOIC  
Y6 = UDFN  
U3 = VFBGA  
WWU= Wafer Unsawn  
Examples  
Device  
Package  
Package  
Drawing  
Code  
Package  
Option  
Organization  
Shipping  
Carrier Option  
Device Grade  
AT93C46DN-SH-B  
AT93C46EN-SH-T  
AT93C46E-TH-B  
AT93C46D-TH-T  
AT93C46DY6-YH-T  
AT93C46DY6-YH-E  
SOIC  
SOIC  
SN  
SN  
S
S
T
T
Y
Y
User Selectable  
16 X 64  
Bulk (Tubes)  
Tape and Reel  
Bulk (Tubes)  
Industrial  
Temperature  
(-40°C to 85°C)  
TSSOP  
TSSOP  
UDFN  
UDFN  
ST  
16 X 64  
ST  
User Selectable  
User Selectable  
User Selectable  
Tape and Reel  
Tape and Reel  
Q4B  
Q4B  
Extended Qty.,  
Tape and Reel  
AT93C46E-PU  
PDIP  
P
P
U
16 X 64  
Bulk (Tubes)  
AT93C46DU3-UU-T  
VFBGA  
8U3-1  
User Selectable  
Tape and Reel  
Microchip Devices Code Protection Feature  
Note the following details of the code protection feature on Microchip devices:  
• Microchip products meet the specification contained in their particular Microchip Data Sheet.  
• Microchip believes that its family of products is one of the most secure families of its kind on the  
market today, when used in the intended manner and under normal conditions.  
• There are dishonest and possibly illegal methods used to breach the code protection feature. All of  
these methods, to our knowledge, require using the Microchip products in a manner outside the  
operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is  
engaged in theft of intellectual property.  
DS20006224A-page 33  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
• Microchip is willing to work with the customer who is concerned about the integrity of their code.  
• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their  
code. Code protection does not mean that we are guaranteeing the product as “unbreakable.”  
Code protection is constantly evolving. We at Microchip are committed to continuously improving the  
code protection features of our products. Attempts to break Microchip’s code protection feature may be a  
violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software  
or other copyrighted work, you may have a right to sue for relief under that Act.  
Legal Notice  
Information contained in this publication regarding device applications and the like is provided only for  
your convenience and may be superseded by updates. It is your responsibility to ensure that your  
application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR  
WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY  
OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS  
CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE.  
Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life  
support and/or safety applications is entirely at the buyer’s risk, and the buyer agrees to defend,  
indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting  
from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual  
property rights unless otherwise stated.  
Trademarks  
The Microchip name and logo, the Microchip logo, Adaptec, AnyRate, AVR, AVR logo, AVR Freaks,  
BesTime, BitCloud, chipKIT, chipKIT logo, CryptoMemory, CryptoRF, dsPIC, FlashFlex, flexPWR,  
HELDO, IGLOO, JukeBlox, KeeLoq, Kleer, LANCheck, LinkMD, maXStylus, maXTouch, MediaLB,  
megaAVR, Microsemi, Microsemi logo, MOST, MOST logo, MPLAB, OptoLyzer, PackeTime, PIC,  
picoPower, PICSTART, PIC32 logo, PolarFire, Prochip Designer, QTouch, SAM-BA, SenGenuity, SpyNIC,  
SST, SST Logo, SuperFlash, Symmetricom, SyncServer, Tachyon, TempTrackr, TimeSource, tinyAVR,  
UNI/O, Vectron, and XMEGA are registered trademarks of Microchip Technology Incorporated in the  
U.S.A. and other countries.  
APT, ClockWorks, The Embedded Control Solutions Company, EtherSynch, FlashTec, Hyper Speed  
Control, HyperLight Load, IntelliMOS, Libero, motorBench, mTouch, Powermite 3, Precision Edge,  
ProASIC, ProASIC Plus, ProASIC Plus logo, Quiet-Wire, SmartFusion, SyncWorld, Temux, TimeCesium,  
TimeHub, TimePictra, TimeProvider, Vite, WinPath, and ZL are registered trademarks of Microchip  
Technology Incorporated in the U.S.A.  
Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any Capacitor, AnyIn, AnyOut, BlueSky,  
BodyCom, CodeGuard, CryptoAuthentication, CryptoAutomotive, CryptoCompanion, CryptoController,  
dsPICDEM, dsPICDEM.net, Dynamic Average Matching, DAM, ECAN, EtherGREEN, In-Circuit Serial  
Programming, ICSP, INICnet, Inter-Chip Connectivity, JitterBlocker, KleerNet, KleerNet logo, memBrain,  
Mindi, MiWi, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient  
Code Generation, PICDEM, PICDEM.net, PICkit, PICtail, PowerSmart, PureSilicon, QMatrix, REAL ICE,  
Ripple Blocker, SAM-ICE, Serial Quad I/O, SMART-I.S., SQI, SuperSwitcher, SuperSwitcher II, Total  
Endurance, TSHARC, USBCheck, VariSense, ViewSpan, WiperLock, Wireless DNA, and ZENA are  
trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.  
SQTP is a service mark of Microchip Technology Incorporated in the U.S.A.  
DS20006224A-page 34  
Datasheet  
© 2019 Microchip Technology Inc.  
AT93C46D/AT93C46E  
The Adaptec logo, Frequency on Demand, Silicon Storage Technology, and Symmcom are registered  
trademarks of Microchip Technology Inc. in other countries.  
GestIC is a registered trademark of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of  
Microchip Technology Inc., in other countries.  
All other trademarks mentioned herein are property of their respective companies.  
©
2019, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved.  
ISBN: 978-1-5224-4748-1  
AMBA, Arm, Arm7, Arm7TDMI, Arm9, Arm11, Artisan, big.LITTLE, Cordio, CoreLink, CoreSight, Cortex,  
DesignStart, DynamIQ, Jazelle, Keil, Mali, Mbed, Mbed Enabled, NEON, POP, RealView, SecurCore,  
Socrates, Thumb, TrustZone, ULINK, ULINK2, ULINK-ME, ULINK-PLUS, ULINKpro, µVision, Versatile  
are trademarks or registered trademarks of Arm Limited (or its subsidiaries) in the US and/or elsewhere.  
Quality Management System  
For information regarding Microchip’s Quality Management Systems, please visit http://  
www.microchip.com/quality.  
DS20006224A-page 35  
Datasheet  
© 2019 Microchip Technology Inc.  
Worldwide Sales and Service  
AMERICAS  
ASIA/PACIFIC  
ASIA/PACIFIC  
EUROPE  
Corporate Office  
2355 West Chandler Blvd.  
Chandler, AZ 85224-6199  
Tel: 480-792-7200  
Fax: 480-792-7277  
Technical Support:  
http://www.microchip.com/support  
Web Address:  
Australia - Sydney  
Tel: 61-2-9868-6733  
China - Beijing  
India - Bangalore  
Tel: 91-80-3090-4444  
India - New Delhi  
Tel: 91-11-4160-8631  
India - Pune  
Austria - Wels  
Tel: 43-7242-2244-39  
Fax: 43-7242-2244-393  
Denmark - Copenhagen  
Tel: 45-4450-2828  
Tel: 86-10-8569-7000  
China - Chengdu  
Tel: 86-28-8665-5511  
China - Chongqing  
Tel: 86-23-8980-9588  
China - Dongguan  
Tel: 86-769-8702-9880  
China - Guangzhou  
Tel: 86-20-8755-8029  
China - Hangzhou  
Tel: 86-571-8792-8115  
China - Hong Kong SAR  
Tel: 852-2943-5100  
China - Nanjing  
Tel: 91-20-4121-0141  
Japan - Osaka  
Fax: 45-4485-2829  
Finland - Espoo  
Tel: 81-6-6152-7160  
Japan - Tokyo  
Tel: 358-9-4520-820  
France - Paris  
http://www.microchip.com  
Atlanta  
Tel: 81-3-6880- 3770  
Korea - Daegu  
Tel: 33-1-69-53-63-20  
Fax: 33-1-69-30-90-79  
Germany - Garching  
Tel: 49-8931-9700  
Duluth, GA  
Tel: 678-957-9614  
Fax: 678-957-1455  
Austin, TX  
Tel: 82-53-744-4301  
Korea - Seoul  
Tel: 82-2-554-7200  
Malaysia - Kuala Lumpur  
Tel: 60-3-7651-7906  
Malaysia - Penang  
Tel: 60-4-227-8870  
Philippines - Manila  
Tel: 63-2-634-9065  
Singapore  
Germany - Haan  
Tel: 512-257-3370  
Boston  
Tel: 49-2129-3766400  
Germany - Heilbronn  
Tel: 49-7131-72400  
Germany - Karlsruhe  
Tel: 49-721-625370  
Germany - Munich  
Tel: 49-89-627-144-0  
Fax: 49-89-627-144-44  
Germany - Rosenheim  
Tel: 49-8031-354-560  
Israel - Ra’anana  
Westborough, MA  
Tel: 774-760-0087  
Fax: 774-760-0088  
Chicago  
Tel: 86-25-8473-2460  
China - Qingdao  
Tel: 86-532-8502-7355  
China - Shanghai  
Tel: 86-21-3326-8000  
China - Shenyang  
Tel: 86-24-2334-2829  
China - Shenzhen  
Tel: 86-755-8864-2200  
China - Suzhou  
Itasca, IL  
Tel: 630-285-0071  
Fax: 630-285-0075  
Dallas  
Tel: 65-6334-8870  
Taiwan - Hsin Chu  
Tel: 886-3-577-8366  
Taiwan - Kaohsiung  
Tel: 886-7-213-7830  
Taiwan - Taipei  
Addison, TX  
Tel: 972-818-7423  
Fax: 972-818-2924  
Detroit  
Tel: 972-9-744-7705  
Italy - Milan  
Tel: 86-186-6233-1526  
China - Wuhan  
Tel: 886-2-2508-8600  
Thailand - Bangkok  
Tel: 66-2-694-1351  
Vietnam - Ho Chi Minh  
Tel: 84-28-5448-2100  
Tel: 39-0331-742611  
Fax: 39-0331-466781  
Italy - Padova  
Novi, MI  
Tel: 248-848-4000  
Houston, TX  
Tel: 86-27-5980-5300  
China - Xian  
Tel: 39-049-7625286  
Netherlands - Drunen  
Tel: 31-416-690399  
Fax: 31-416-690340  
Norway - Trondheim  
Tel: 47-72884388  
Tel: 281-894-5983  
Indianapolis  
Tel: 86-29-8833-7252  
China - Xiamen  
Noblesville, IN  
Tel: 86-592-2388138  
China - Zhuhai  
Tel: 317-773-8323  
Fax: 317-773-5453  
Tel: 317-536-2380  
Los Angeles  
Tel: 86-756-3210040  
Poland - Warsaw  
Tel: 48-22-3325737  
Romania - Bucharest  
Tel: 40-21-407-87-50  
Spain - Madrid  
Mission Viejo, CA  
Tel: 949-462-9523  
Fax: 949-462-9608  
Tel: 951-273-7800  
Raleigh, NC  
Tel: 34-91-708-08-90  
Fax: 34-91-708-08-91  
Sweden - Gothenberg  
Tel: 46-31-704-60-40  
Sweden - Stockholm  
Tel: 46-8-5090-4654  
UK - Wokingham  
Tel: 919-844-7510  
New York, NY  
Tel: 631-435-6000  
San Jose, CA  
Tel: 408-735-9110  
Tel: 408-436-4270  
Canada - Toronto  
Tel: 905-695-1980  
Fax: 905-695-2078  
Tel: 44-118-921-5800  
Fax: 44-118-921-5820  
DS20006224A-page 36  
Datasheet  
© 2019 Microchip Technology Inc.  

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