AK93C65A [AKM]
1K / 2K / 4K / 8KBIT SERIAL CMOS EEPROM; 1K / 2K / 4K / 8Kbit串行CMOS EEPROM的
| 型号： | AK93C65A |
| 厂家： | 
ASAHI KASEI MICROSYSTEMS |
| 描述： | 1K / 2K / 4K / 8KBIT SERIAL CMOS EEPROM |
| 文件： | 总15页 (文件大小：173K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ASAHI KASEI
[AK93C45A/55A/65A/75A]
AK93C45A / 55A / 65A / 75A
1K / 2K / 4K / 8Kbit Serial CMOS EEPROM
Features
ꢀ ADVANCED CMOS EEPROM TECHNOLOGY
ꢀ READ/WRITE NON-VOLATILE MEMORY
ꢀ
ꢀ WIDE VCC OPERATION
Vcc = 1.8V ꢁ 5.5V
ꢀ AK93C45A
AK93C55A
AK93C65A
AK93C75A
1024 bits, 64 ꢂ 16 organization
2048 bits, 128 ꢂ 16 organization
4096 bits, 256 ꢂ 16 organization
8192 bits, 512 ꢂ 16 organization
ꢀ SERIAL INTERFACE
- Interfaces with popular microcontrollers and standard microprocessors
ꢀ LOW POWER CONSUMPTION
- 0.5mA max. Read Operation
- 0.8ꢀA Max. Standby
ꢀ HIGH RELIABILITY
-Endurance
-Data Retention
: 100K cycles
: 10 years
ꢀ Automatic address increment (READ)
ꢀ Automatic write cycle time-out with auto-ERASE
ꢀ Busy/Ready status signal
ꢀ Software controlled write protection
ꢀ IDEAL FOR LOW DENSITY DATA STORAGE
- Low cost, space saving, 8-pin package
Block Diagram
DAM01E-01
1999/10
- 1 -
ASAHI KASEI
[AK93C45A/55A/65A/75A]
General Description
The AK93C45A/55A/65A/75A is a 1024/2048/4096/8192-bit serial CMOS EEPROM divided into
64/128/256/512 registers of 16 bits each.
The AK93C45A/55A/65A/75A has 4 instructions such as READ, WRITE, EWEN and EWDS. Those
instructions control the AK93C45A/55A/65A/75A.
The AK93C45A/55A/65A/75A can operate full function under wide operating voltage range from 1.8V to 5.5V.
The charge up circuit is integrated for high voltage generation that is used for write operation.
A serial interface of AK93C45A/55A/65A/75A, consisting of chip select (CS), serial clock (SK), data-in (DI)
and data-out (DO), can easily be controlled by popular microcontrollers or standard microprocessors.
AK93C45A/55A/65A/75A takes in the write data from data input pin (DI) to a register synchronously with rising
edge of input pulse of serial clock pin (SK). And at read operation, AK93C45A/55A/65A/75A takes out the
read data from a register to data output pin (DO) synchronously with rising edge of SK.
The DO pin is usually in high impedance state. The DO pin outputs "L" or "H" in case of data output or Busy/Ready
signal output.
Software and Hardware controlled write protection
When Vcc is applied to the part, the part automatically powers up in the ERASE/WRITE Disable state. In the
ERASE/WRITE disable state, execution of WRITE instruction is disabled. Before WRITE instruction is
executed, EWEN instruction must be executed. The ERASE/WRITE enable state continues until EWDS
instruction is executed or Vcc is removed from the part.
Execution of a read instruction is independent of both EWEN and EWDS instructions.
The PE is internally pulled up to VCC. If the PE is left unconnected, the part will accept WRITE, EWEN and
EWDS instructions. AK93C55A/65A
Busy/Ready status signal
After a write instruction, the DO output serves as a Busy/Ready status indicator. After the falling edge of the
CS initiates the self-timed programming cycle, the DO indicates the Busy/Ready status of the chip if the CS is
brought high after a minimum of 250ns (Tcs). DO=logical "0" indicates that programming is still in progress.
DO=logical "1" indicates that the register at the address specified in the instruction has been written with the
new data pattern contained in the instruction and the part is ready for a next instruction.
The Busy/Ready status indicator is only valid when CS is active (high). When CS is low, the DO output goes
into a high impedance state.
The Busy/Ready signal outputs until a start bit (Logic"1") of the next instruction is given to the part.
DAM01E-01
1999/10
- 2 -
ASAHI KASEI
[AK93C45A/55A/65A/75A]
Type of Products
Model
AK93C45AF
AK93C45ANF
AK93C45AV
AK93C55AF
AK93C55ANF
AK93C55AV
AK93C65AF
AK93C65ANF
AK93C65AV
AK93C75AF
AK93C75ANF
AK93C75AV
Memory size
1Kbits
Temp.Range
-40 C 85 C
-40 C 85 C
-40 C 85 C
-40 C 85 C
-40 C 85 C
-40 C 85 C
-40 C 85 C
-40 C 85 C
-40 C 85 C
-40 C 85 C
-40 C 85 C
-40 C 85 C
Vcc
Package
1.8V 5.5V
1.8V 5.5V
1.8V 5.5V
1.8V 5.5V
1.8V 5.5V
1.8V 5.5V
1.8V 5.5V
1.8V 5.5V
1.8V 5.5V
1.8V 5.5V
1.8V 5.5V
1.8V 5.5V
8pin Plastic SOP
8pin Plastic SOP
8pin Plastic TSSOP
8pin Plastic SOP
8pin Plastic SOP
8pin Plastic TSSOP
8pin Plastic SOP
8pin Plastic SOP
8pin Plastic TSSOP
8pin Plastic SOP
8pin Plastic SOP
8pin Plastic TSSOP
2Kbits
4Kbits
8Kbits
DAM01E-01
1999/10
- 3 -
ASAHI KASEI
[AK93C45A/55A/65A/75A]
Pin arrangement
Pin Name
Function
CS
SK
Chip Select
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
DI
DO
GND
PE
Program Enable
Power Supply
Not Connected
Vcc
NC
(note) The PE is internally pulled up to VCC ( R = typ.2.5M , VCC=5V ).
DAM01E-01
1999/10
- 4 -
ASAHI KASEI
[AK93C45A/55A/65A/75A]
Functional Description
The AK93C45A/55A/65A/75A has 4 instructions such as READ, WRITE, EWEN and EWDS. A valid
instruction consists of a Start Bit (Logic"1"), the appropriate Op Code and the desired memory Address
location.
The CS pin must be brought low for a minimum of 250ns (Tcs) between each instruction when the instruction
is continuously executed.
Instruction Start
Bit
Op
Address
A5-A0
Data
Comments
Code
READ
WRITE
EWEN
EWDS
WRAL
1
1
1
1
1
10
D15-D0
D15-D0
Reads data stored in memory, at specified address.
Writes register.
01
00
00
00
A5-A0
11XXXX
00XXXX
01XXXX
Write enable must precede all programming modes.
Disables all programming instructions.
D15-D0
Writes all registers.
X: Don't care
table 1. Instruction Set for the AK93C45A
Instruction Start
Bit
Op
Code
10
Address
Data
Comments
READ
WRITE
EWEN
EWDS
WRAL
1
1
1
1
1
X A6-A0
D15-D0
D15-D0
Reads data stored in memory, at specified address.
Writes register.
01
00
00
00
X A6-A0
11XXXXXX
00XXXXXX
01XXXXXX
Write enable must precede all programming modes.
Disables all programming instructions.
D15-D0
Writes all registers.
X: Don't care
table 2. Instruction Set for the AK93C55A
Instruction Start
Bit
Op
Code
10
Address
Data
Comments
READ
WRITE
EWEN
EWDS
WRAL
1
1
1
1
1
A7-A0
D15-D0
D15-D0
Reads data stored in memory, at specified address.
Writes register.
01
00
00
00
A7-A0
11XXXXXX
00XXXXXX
01XXXXXX
Write enable must precede all programming modes.
Disables all programming instructions.
D15-D0
Writes all registers.
X: Don't care
table 3. Instruction Set for the AK93C65A
Instruction Start
Bit
Op
Code
10
Address
Data
Comments
READ
WRITE
EWEN
EWDS
WRAL
1
1
1
1
1
XA8-A0
D15-D0
D15-D0
Reads data stored in memory, at specified address.
Writes register.
01
00
00
00
XA8-A0
11XXXXXXXX
00XXXXXXXX
Write enable must precede all programming modes.
Disables all programming instructions.
01XXXXXXXX D15-D0
Writes all registers.
X: Don't care
table 4. Instruction Set for the AK93C75A
(Note) The WRAL instruction are used for factory function test only.
User can't use the WRAL instruction.
The AK93C45A/55A/65A/75A perceives the start bit in the logic"1" and also "01".
DAM01E-01
1999/10
- 5 -
ASAHI KASEI
[AK93C45A/55A/65A/75A]
Write
The write instruction is followed by 16 bits of data to be written into the specified address. After the last bit of
data is put on the DI pin, the CS pin must be brought low before the next rising edge of the SK clock. This
falling edge of the CS initiates the self-timed programming cycle. The DO indicates the Busy/Ready status of
the chip if the CS is brought high after a minimum of 250ns (Tcs). DO=logical "0" indicates that programming
is still in progress. DO=logical "1" indicates that the register at the address specified in the instruction has
been written with the new data pattern contained in the instruction and the part is ready for a next instruction.
DAM01E-01
1999/10
- 6 -
ASAHI KASEI
[AK93C45A/55A/65A/75A]
Read
The read instruction is the only instruction which outputs serial data on the DO pin.
Following the Start bit, first Op code and address are decoded, then the data from the selected memory
location is available at the DO pin. A dummy bit (logical "0") precedes the 16-bit data from the selected
memory location. The output data changes are synchronized with the rising edges of the serial clock (SK).
The data in the next address can be read sequentially by continuing to provide clock. The address
automatically cycles to the next higher address after the 16bit data shifted out.
When the highest address is reached, the address counter rolls over to address $00 or $000 allowing the read
cycle to be continued indefinitely.
DAM01E-01
1999/10
- 7 -
ASAHI KASEI
[AK93C45A/55A/65A/75A]
EWEN / EWDS
When Vcc is applied to the part, the part automatically powers up in the ERASE/WRITE Disable state. In the
ERASE/WRITE disable state, execution of WRITE instruction is disable. Before WRITE instruction is
executed, EWEN instruction must be executed. The ERASE/WRITE enable state continues until EWDS
instruction is executed or Vcc is removed from the part.
Execution of a read instruction is independent of both EWEN and EWDS instructions.
DAM01E-01
1999/10
- 8 -
ASAHI KASEI
[AK93C45A/55A/65A/75A]
Absolute Maximum Ratings
Parameter
Symbol
VCC
Min
-0.6
-0.6
Max
Unit
V
Power Supply
+7.0
All Input Voltages
VIO
VCC+0.6
V
with Respect to Ground
Ambient storage temperature
Tst
-65
+150
C
Stress 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 operational sections of the
specification is not implied. Exposure to absolute maximum conditions for extended
periods may affect device reliability.
Recommended Operating Condition
Parameter
Symbol
VCC
Ta
Min
1.8
-40
Max
5.5
Unit
V
Power Supply
Ambient Operating Temperature
+85
C
DAM01E-01
1999/10
- 9 -
ASAHI KASEI
[AK93C45A/55A/65A/75A]
Electrical Characteristics
(1) D.C. ELECTRICAL CHARACTERISTICS
AK93C45A/55A/65A
( 1.8V Vcc 5.5V, -40 C Ta 85 C, unless otherwise specified )
Parameter
Symbol
ICC1
Condition
Min.
Max.
4.0
1.5
2.0
0.5
0.2
0.1
0.8
Unit
mA
mA
mA
mA
mA
mA
uA
Current Dissipation
VCC=5.5V, tSKP=1us, *1
ICC2
VCC=1.8V,
tSK=4us,*1
93C45A
(WRITE)
93C55A/65A
Current Dissipation
ICC3
ICC4
ICC5
ICCSB
VCC=5.5V, tSKP=1us, *1
VCC=2.5V, tSKP=2us, *1
VCC=1.8V, tSKP=4us, *1
(READ,EWEN,EWDS)
Current Dissipation
(Standby)
VCC=5.5V
*2
Input High Voltage
VIH1
VIH2
VIH3
VIL1
VIL2
VIL3
VOH1
VCC=5V 10%
2.5V VCC 5.5V
1.8V VCC<2.5V
VCC=5V 10%
2.5V VCC 5.5V
1.8V VCC<2.5V
VCC=5V 10%
IOH=-0.4mA
2.0
0.8 VCC
0.8 VCC
-0.1
VCC+0.5
VCC+0.5
VCC+0.5
0.8
V
V
V
V
V
V
V
Input Low Voltage
-0.1
0.15 VCC
0.2 VCC
-0.1
Output High Voltage
2.2
VOH2
VOH3
VOL1
VOL2
VOL3
2.5V VCC 5.5V
IOH=-0.1mA
0.8 VCC
0.8 VCC
V
V
V
V
V
1.8V VCC<2.5V
IOH=-0.1mA
Output Low Voltage
VCC=5V 10%
IOL=2.1mA
0.4
0.4
0.4
2.5V VCC 5.5V
IOL=1.0mA
1.8V VCC<2.5V
IOL=0.1mA
Input Leakage
ILI
VCC=5.5V,VIN=5.5V *3
1.0
1.0
uA
uA
Output Leakage
ILO
VCC=5.5V
VOUT=5.5V,CS=GND
*1:VIN=VIH/VIL,DO=Open
*2:VIN=VCC/GND,CS=GND,DO=Open
*3:CS, SK, DI pin
DAM01E-01
1999/10
- 10 -
ASAHI KASEI
AK93C75A
[AK93C45A/55A/65A/75A]
( 1.8V Vcc 5.5V, -40 C Ta 85 C, unless otherwise specified )
Parameter
Current Dissipation
(WRITE)
Symbol
ICC1
Condition
Min.
Max.
4.0
2.0
0.4
0.1
0.8
Unit
mA
mA
mA
mA
uA
VCC=5.5V, tSKP=1us, *4
VCC=1.8V, tSKP=4us, *4
VCC=5.5V, tSKP=1us, *4
VCC=1.8V, tSKP=4us, *4
ICC2
Current Dissipation
(READ,EWEN,EWDS)
Current Dissipation
(Standby)
ICC3
ICC4
ICCSB
VCC=5.5V
*5
Input High Voltage
Input Low Voltage
Output High Voltage
VIH
0.8 VCC
-0.1
VCC+0.5
V
V
V
VIL
0.2 VCC
VOH1
2.5V VCC 5.5V
IOH=-0.1mA
0.8 VCC
VOH2
VOL1
VOL2
1.8V VCC<2.5V
IOH=-0.1mA
0.8 VCC
V
V
V
Output Low Voltage
2.5V VCC 5.5V
IOL=1.0mA
0.4
0.4
1.8V VCC<2.5V
IOL=0.1mA
Input Leakage
ILI
VCC=5.5V, VIN=5.5V *6
VCC=5.5V
1.0
1.0
uA
uA
Output Leakage
ILO
VOUT=5.5V, CS=GND
*4:VIN=VIH/VIL,DO=Open
*5:VIN=VCC/GND,CS=GND,DO=Open
*6:CS, SK, DI pin
DAM01E-01
1999/10
- 11 -
ASAHI KASEI
[AK93C45A/55A/65A/75A]
(2) A.C. ELECTRICAL CHARACTERISTICS
( 1.8V Vcc 5.5V, -40 C Ta 85 C, unless otherwise specified )
Parameter
SK Cycle Time
Symbol
tSKP1
tSKP2
tSKP3
tSKW1
tSKW2
tSKW3
tCSS
tCSH
tDIS
Condition
4.5V VCC 5.5V
Min.
1.0
2.0
4.0
500
1.0
2.0
100
0
Max.
Unit
us
us
us
ns
us
us
ns
ns
ns
ns
ns
us
us
ms
ms
ms
ns
ns
ns
ns
2.0V VCC<4.5V
1.8V VCC<2.0V
4.5V VCC 5.5V
2.0V VCC<4.5V
1.8V VCC<2.0V
SK Pulse Width
CS Setup Time
CS Hold Time
Data Setup Time
Data Hold Time
200
200
tDIH
tPD1
4.5V VCC 5.5V
2.0V VCC<4.5V
1.8V VCC<2.0V
93C45A/55A/65A
500
1.0
2.0
10
8
Output delay *7
tPD2
tPD3
Selftimed Programming
tE/W1
tE/W2
tE/W3
tCS
Time
93C75A
4.5V VCC 5.5V
1.8V VCC<4.5V
10
Min CS Low Time
CS to Status Valid
CS to Output High-Z
250
tSV
CL=100pF
500
100
250
tOZ1
2.0V VCC 5.5V
1.8V VCC<2.0V
tOZ2
*7:CL=100pF
DAM01E-01
1999/10
- 12 -
ASAHI KASEI
[AK93C45A/55A/65A/75A]
Synchronous DataTiming
The Start of Instruction
The End of Instruction
DAM01E-01
1999/10
- 13 -
ASAHI KASEI
[AK93C45A/55A/65A/75A]
Busy/Ready Signal Output
DAM01E-01
1999/10
- 14 -
IMPORTANT NOTICE
zThese products and their specifications are subject to change without notice. Before
considering any use or application, consult the Asahi Kasei Microsystems Co., Ltd. (AKM)
sales office or authorized distributor concerning their current status.
zAKM assumes no liability for infringement of any patent, intellectual property, or other
right in the application or use of any information contained herein.
zAny export of these products, or devices or systems containing them, may require an
export license or other official approval under the law and regulations of the country of
export pertaining to customs and tariffs, currency exchange, or strategic materials.
zAKM products are neither intended nor authorized for use as critical components in any
safety, life support, or other hazard related device or system, and AKM assumes no
responsibility relating to any such use, except with the express written consent of the
Representative Director of AKM. As used here:
(a) A hazard related device or system is one designed or intended for life support or
maintenance of safety or for applications in medicine, aerospace, nuclear energy, or
other fields, in which its failure to function or perform may reasonably be expected to
result in loss of life or in significant injury or damage to person or property.
(b) A critical component is one whose failure to function or perform may reasonably be
expected to result, whether directly or indirectly, in the loss of the safety or
effectiveness of the device or system containing it, and which must therefore meet
very high standards of performance and reliability.
zIt is the responsibility of the buyer or distributor of an AKM product who distributes,
disposes of, or otherwise places the product with a third party to notify that party in
advance of the above content and conditions, and the buyer or distributor agrees to
assume any and all responsibility and liability for and hold AKM harmless from any and
all claims arising from the use of said product in the absence of such notification.
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