AT88SC0204C_09 [ATMEL]
CryptoMemory 2 Kbit; CryptoMemory 2千位
| 型号： | AT88SC0204C_09 |
| 厂家： | 
ATMEL |
| 描述： | CryptoMemory 2 Kbit |
| 文件： | 总20页 (文件大小：187K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Features
• One of a Family of 9 Devices with User Memories from 1 Kbit to 256-Kbit
• 2-Kbit (256 Bytes) EEPROM User Memory
⎯ Four 64-byte (512-bit) Zones
⎯ Self-timed Write Cycle
⎯ Single Byte or 16-byte Page Write Mode
⎯ Programmable Access Rights for Each Zone
CryptoMemory®
2 Kbit
• 2-Kbit Configuration Zone
⎯ 37-byte OTP Area for User-defined Codes
⎯ 160-byte Area for User-defined Keys and Passwords
• High Security Features
⎯ 64-bit Mutual Authentication Protocol (Under License of ELVA)
⎯ Encrypted Checksum
AT88SC0204C
Summary
⎯ Stream Encryption
⎯ Four Key Sets for Authentication and Encryption
⎯ Eight Sets of Two 24-bit Passwords
⎯ Anti-tearing Function
⎯ Voltage and Frequency Monitor
• Smart Card Features
⎯ ISO 7816 Class A (5V) or Class B (3V) Operation
⎯ ISO 7816-3 Asynchronous T = 0 Protocol (Gemplus® Patent)
⎯ Multiple Zones, Key Sets and Passwords for Multi-application Use
⎯ Synchronous 2-wire Serial Interface for Faster Device Initialization
⎯ Programmable 8-byte Answer-To-Reset Register
⎯ ISO 7816-2 Compliant Modules
• Embedded Application Features
⎯ Low Voltage Operation: 2.7V to 5.5V
⎯ Secure Nonvolatile Storage for Sensitive System or User Information
⎯ 2-wire Serial Interface
⎯ 1.0 MHz Compatibility for Fast Operation
⎯ Standard 8-lead Plastic Packages, Green Compliant (exceeds RoHS)
⎯ Same Pinout as 2-wire Serial EEPROMs
• High Reliability
⎯ Endurance: 100,000 Cycles
⎯ Data Retention: 10 years
⎯ ESD Protection: 4,000V min
Table 1.
Pin Configuration
ISO Module
Contact
Standard
Package Pin
Pad
Description
VCC
Supply Voltage
Ground
C1
C5
C3
8
4
6
GND
SCL/CLK Serial Clock Input
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ISO Module
Contact
Standard
Package Pin
Pad
Description
SDA/IO
RST
Serial Data Input/Output
Reset Input
C7
C2
5
NC
Figure 1.
Package Options
8-lead SOIC, PDIP
Smart Card Module
VCC=C1
RST=C2
C5=GND
NC
VCC
NC
1
2
3
4
8
7
6
5
C6=NC
NC
NC
SCL/CLK=C3
NC=C4
C7=SDA/IO
C8=NC
SCL
SDA
GND
1.
Description
The AT88SC0204C member of the CryptoMemory® family is a high-performance secure memory providing 2 Kbits of
user memory with advanced security and cryptographic features built in. The user memory is divided into four 64-byte
zones, each of which may be individually set with different security access rights or effectively combined together to
provide space for 1 to 4 data files.
1.1.
Smart Card Applications
The AT88SC0204C provides high security, low cost, and ease of implementation without the need for a microprocessor
operating system. The embedded cryptographic engine provides for dynamic and symmetric mutual authentication
between the device and host, as well as performing stream encryption for all data and passwords exchanged between
the device and host. Up to four unique key sets may be used for these operations. The AT88SC0204C offers the ability
to communicate with virtually any smart card reader using the asynchronous T = 0 protocol (Gemplus Patent) defined
in ISO 7816-3.
1.2.
Embedded Applications
Through dynamic and symmetric mutual authentication, data encryption, and the use of encrypted checksums, the
AT88SC0204C provides a secure place for storage of sensitive information within a system. With its tamper detection
circuits, this information remains safe even under attack. A 2-wire serial interface running at 1.0 MHz is used for fast
and efficient communications with up to 15 devices that may be individually addressed. The AT88SC0204C is available
in industry standard 8-lead packages with the same familiar pinout as 2-wire serial EEPROMs.
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Figure 2.
Block Diagram
Authentication,
Encryption and
Certification Unit
VCC
GND
Random
Generator
Power
Management
Synchronous
Interface
Data Transfer
SCL/CLK
SDA/IO
Password
Verification
Asynchronous
ISO Interface
EEPROM
Reset Block
RST
Answer to Reset
2.
Pin Descriptions
2.1.
Supply Voltage (VCC)
The VCC input is a 2.7V to 5.5V positive voltage supplied by the host.
2.2.
2.3.
2.4.
Clock (SCL/CLK)
In the asynchronous T = 0 protocol, the SCL/CLK input is used to provide the device with a carrier frequency f. The
nominal length of one bit emitted on I/O is defined as an “elementary time unit” (ETU) and is equal to 372/ f. When the
synchronous protocol is used, the SCL/CLK input is used to positive edge clock data into the device and negative edge
clock data out of the device.
Reset (RST)
The AT88SC0204C provides an ISO 7816-3 compliant asynchronous answer to reset sequence. When the reset
sequence is activated, the device will output the data programmed into the 64-bit answer-to-reset register. An internal
pull-up on the RST input pad allows the device to be used in synchronous mode without bonding RST. The
AT88SC0204C does not support the synchronous answer-to-reset sequence.
Serial Data (SDA/IO)
The SDA pin is bidirectional for serial data transfer. This pin is open-drain driven and may be wired with any number of
other open drain or open collector devices. An external pull-up resistor should be connected between SDA and VCC
.
The value of this resistor and the system capacitance loading the SDA bus will determine the rise time of SDA. This
rise time will determine the maximum frequency during read operations. Low value pull-up resistors will allow higher
frequency operations while drawing higher average power supply current. SDA/IO information applies to both
asynchronous and synchronous protocols.
When the synchronous protocol is used, the SCL/CLK input is used to positive edge clock data into the device and
negative edge clock data out of the device.
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Table 2.
DC Characteristics
Applicable over recommended operating range from VCC = +2.7 to 5.5V, TAC = -40°C to +85°C (unless otherwise noted)
Symbol
Parameter
Supply Voltage
Test Condition
Min
Typ
Max
Units
(2)
VCC
2.7
5.5
V
ICC
ICC
ICC
ICC
ISB
Supply Current (VCC = 5.5V)
Supply Current (VCC = 5.5V)
Supply Current (VCC = 5.5V)
Supply Current (VCC = 5.5V)
Standby Current (VCC = 5.5V)
SDA/IO Input Low Threshold
SCL/CLK Input Low Threshold
RST Input Low Threshold
SDA/IO Input High Threshold
SCL/CLK Input High Threshold
RST Input High Threshold
SDA/IO Input Low Current
SCL/CLK Input Low Current
RST Input Low Current
Async READ at 3.57MHz
Async WRITE at 3.57MHz
Synch READ at 1MHz
Synch WRITE at 1MHz
VIN = VCC or GND
5
mA
mA
mA
mA
mA
V
5
5
5
100
(1)
VIL
0
VCC x 0.2
VCC x 0.2
VCC x 0.2
VCC
(1)
VIL
0
V
(1)
VIL
0
V
(1)(2)
VIH
VCC x 0.7
VCC x 0.7
VCC x 0.7
V
(1)(2)
VIH
VCC
V
(1)(2)
VIH
VCC
V
IIL
0 < VIL < VCC x 0.15
0 < VIL < VCC x 0.15
0 < VIL < VCC x 0.15
VCC x 0.7 < VIH < VCC
VCC x 0.7 < VIH < VCC
VCC x 0.7 < VIH < VCC
20K ohm external pull-up
IOL = 1mA
15
μA
μA
μA
μA
μA
μA
V
IIL
15
IIL
50
IIH
SDA/IO Input High Current
SCL/CLK Input High Current
RST Input High Current
20
IIH
100
IIH
150
VOH
VOL
IOH
SDA/IO Output High Voltage
SDA/IO Output Low Voltage
SDA/IO Output High Current
VCC x 0.7
0
VCC
VCC x 0.15
20
V
VOH
μA
Notes: 1. VIL min and VIH max are reference only and are not tested.
2. To prevent Latch Up Conditions from occurring during Power Up of the AT88SCxxxxC, VCC must be turned
on before applying VIH. For Powering Down, VIH must be removed before turning VCC off.
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Table 3.
AC Characteristics
Applicable over recommended operating range from VCC = +2.7 to 5.5V,
TAC = -40°C to +85°C, CL = 30pF (unless otherwise noted)
Symbol
fCLK
Parameter
Async Clock Frequency (VCC Range: +4.5 - 5.5V)
Async Clock Frequency (VCC Range: +2.7 - 3.3V)
Synch Clock Frequency
Clock Duty cycle
Min
1
Max
Units
MHZ
MHZ
MHZ
%
5
fCLK
1
4
fCLK
0
1
40
60
tR
Rise Time - I/O, RST
1
μS
tF
Fall Time - I/O, RST
1
μS
tR
Rise Time - CLK
9% x period
9% x period
35
μS
tF
Fall Time - CLK
μS
tAA
Clock Low to Data Out Valid
Start Hold Time
nS
tHD.STA
tSU.STA
tHD.DAT
tSU.DAT
tSU.STO
tDH
200
200
10
nS
Start Set-up Time
nS
Data In Hold Time
nS
Data In Set-up Time
100
200
20
nS
Stop Set-up Time
nS
Data Out Hold Time
nS
tWR
Write Cycle Time (at 25°C)
Write Cycle Time (-40° to +85°C)
5
7
mS
mS
tWR
3.
Device Operation for Synchronous Protocols
CLOCK and DATA TRANSITIONS: The SDA pin is normally pulled high with an external device. Data on the SDA pin
may change only during SCL low time periods (see Figure 5 on page 7). Data changes
during SCL high periods will indicate a start or stop condition as defined below.
START CONDITION:
STOP CONDITION:
ACKNOWLEDGE:
A high-to-low transition of SDA with SCL high is a start condition which must precede any
other command (see Figure 6 on page 7).
A low-to-high transition of SDA with SCL high is a stop condition. After a read sequence, the
stop command will place the EEPROM in a standby power mode (see Figure 6 on page 7).
All addresses and data words are serially transmitted to and from the EEPROM in 8-bit
words. The EEPROM sends a zero to acknowledge that it has received each word. This
happens during the ninth clock cycle.
MEMORY RESET:
After an interruption in protocol, power loss or system reset, any 2-wire part can be reset by
following these steps:
1. Clock up to 9 cycles.
2. Look for SDA high in each cycle while SCL is high.
3. Create a start condition.
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Figure 3.
Bus Timing for 2 wire communications: SCL: Serial Clock, SDA – Serial Data I/O
tHIGH
tF
tLOW
tR
tLOW
SCL
tSU.STA
tHD.STA
tHD.DAT
tSU.DAT
tSU.STO
SDA IN
tAA
tDH
tBUF
SDA OUT
Figure 4.
Write Cycle Timing: SCL: Serial Clock, SDA – Serial Data I/O
SCL
ACK
SDA
8th BIT
WORDn
(1)
t
wr
START
STOP
CONDITION
CONDITION
Note: The write cycle time tWR is the time from a valid stop condition of a write sequence to the end of the internal
clear/write cycle.
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AT88SC0204C
Figure 5.
Data Validity
SDA
SCL
DATA STABLE
DATA STABLE
DATA
CHANGE
ALLOWED
Figure 6.
Start and Stop Definitions
SDA
SCL
START
STOP
Figure 7.
Output Acknowledge
1
8
9
SCL
DATA IN
DATA OUT
START
ACKNOWLEDGE
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4.
Device Architecture
User Zones
4.1.
The EEPROM user memory is divided into 4 zones of 512 bits each. Multiple zones allow for different types of data or
files to be stored in different zones. Access to the user zones is allowed only after security requirements have been
met. These security requirements are defined by the user during the personalization of the device in the configuration
memory. If the same security requirements are selected for multiple zones, then these zones may effectively be
accessed as one larger zone.
Figure 8.
User Zones
Zone
$0
$1
$2
$3
$4
$5
$6
$7
$00
─
64 Bytes
User 0
User 1
User 2
User 3
─
$38
$00
─
64 Bytes
64 Bytes
64 Bytes
─
$38
$00
─
─
$38
$00
─
─
$38
5.
Control Logic
Access to the user zones occurs only through the control logic built into the device. This logic is configurable through
access registers, key registers and keys programmed into the configuration memory during device personalization.
Also implemented in the control logic is a cryptographic engine for performing the various higher-level security
functions of the device.
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AT88SC0204C
6.
Configuration Memory
The configuration memory consists of 2048 bits of EEPROM memory used for storing passwords, keys and codes and
for defining security levels to be used for each user zone. Access rights to the configuration memory are defined in the
control logic and may not be altered by the user.
Figure 9.
Configuration Memory
$0
$1
$2
$3
$4
$5
$6
$7
$00
$08
$10
$18
$20
$28
$30
$38
$40
$48
$50
$58
$60
$68
$70
$78
$80
$88
$90
$98
$A0
$A8
$B0
$B8
$C0
$C8
$D0
$D8
$E0
$E8
$F0
$F8
Answer to Reset
Identification
Read Only
Fab Code
MTZ
Card Manufacturer Code
Lot History Code
DCR
AR0
Identification Number Nc
PR1 AR2 PR2
PR0
AR1
AR3
PR3
Access Control
Reserved
Issuer Code
For Authentication and Encryption use
Cryptography
For Authentication and Encryption use
Secret
PAC
PAC
PAC
Write 0
Write 1
Write 2
PAC
PAC
PAC
Read 0
Read 1
Read 2
Password
Forbidden
Reserved
PAC
Write 7
PAC
Reserved
Read 7
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7.
8.
Security Fuses
There are three fuses on the device that must be blown during the device personalization process. Each fuse locks
certain portions of the configuration memory as OTP memory. Fuses are designed for the module manufacturer, card
manufacturer and card issuer and should be blown in sequence, although all programming of the device and blowing of
the fuses may be performed at one final step.
Protocol selection
The AT88SC0204C supports two different communication protocols.
•
Smart Card Applications: The asynchronous T = 0 protocol defined by ISO 7816-3 is used for compatibility with
the industry’s standard smart card readers.
•
Embedded Applications: A 2-wire serial interface is used for fast and efficient communication with logic or
controllers.
The power-up sequence determines which of the two communication protocols will be used.
8.1.
Asynchronous T = 0 Protocol
This power-up sequence complies with ISO 7816-3 for a cold reset in smart card applications.
•
•
•
•
VCC goes high; RST, I/O-SDA and CLK-SCL are low.
Set I/O-SDA in receive mode.
Provide a clock signal to CLK-SCL.
RST goes high after 400 clock cycles.
The device will respond with a 64-bit ATR code, including historical bytes to indicate the memory density within the
CryptoMemory family. Once the asynchronous mode has been selected, it is not possible to switch to the synchronous
mode without powering off the device.
Figure 10. Asynchronous T = 0 Protocol (Gemplus Patent)
V
cc
ATR
I/O-SDA
RST
CLK-SCL
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AT88SC0204C
8.2.
Synchronous 2-wire Serial Interface
The synchronous mode is the default after powering up VCC due to an internal pull-up on RST. For embedded
applications using CryptoMemory in standard plastic packages, this is the only communication protocol.
•
•
Power-up VCC, RST goes high also.
After stable VCC, CLK-SCL and I/O-SDA may be driven.
Figure 11. Synchronous 2-wire Protocol
V
cc
I/O-SDA
RST
1
2
4
5
3
CLK-SCL
Note: Five clock pulses must be sent before the first command is issued.
9.
Communication Security Modes
Communications between the device and host operate in three basic modes. Standard mode is the default mode for
the device after power-up. Authentication mode is activated by a successful authentication sequence. Encryption mode
is activated by a successful encryption activation following a successful authentication.
Table 4.
Mode
Standard
Communication Security Modes(1)
Configuration Data
clear
User Data
clear
Passwords
clear
Data Integrity Check
MDC(1)
Authentication
Encryption
clear
clear
clear
encrypted
encrypted
MAC(1)
MAC(1)
encrypted
Note: 1. Configuration data include viewable areas of the Configuration Zone except the passwords:
MDC: Modification Detection Code
MAC: Message Authentication Code.
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10.
Security Options
10.1. Anti-tearing
In the event of a power loss during a write cycle, the integrity of the device’s stored data may be recovered. This
function is optional: the host may choose to activate the anti-tearing function, depending on application requirements.
When anti-tearing is active, write commands take longer to execute, since more write cycles are required to complete
them, and data are limited to eight bytes.
Data are written first to a buffer zone in EEPROM instead of the intended destination address, but with the same
access conditions. The data are then written in the required location. If this second write cycle is interrupted due to a
power loss, the device will automatically recover the data from the system buffer zone at the next power-up.
In 2-wire mode, the host is required to perform ACK polling for up to 8 ms after write commands when anti-tearing is
active. At power-up, the host is required to perform ACK polling, in some cases for up to 2 ms, in the event that the
device needs to carry out the data recovery process.
10.2. Write Lock
If a user zone is configured in the write lock mode, the lowest address byte of an 8-byte page constitutes a write access
byte for the bytes of that page.
Example:
The write lock byte at $080 controls the bytes from $080 to $087.
Figure 12. Write Lock Example
Address
$0
11011001 xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx
locked locked locked
$1
$2
$3
$4
$5
$6
$7
$080
The write lock byte may also be locked by writing its least significant (rightmost) bit to “0”. Moreover, when write lock
mode is activated, the write lock byte can only be programmed — that is, bits written to “0” cannot return to “1”.
In the write lock configuration, only one byte can be written at a time. Even if several bytes are received, only the first
byte will be taken into account by the device.
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11.
Password Verification
Passwords may be used to protect read and/or write access of any user zone. When a valid password is presented, it
is memorized and active until power is turned off, unless a new password is presented or RST becomes active. There
are eight password sets that may be used to protect any user zone. Only one password is active at a time, but write
passwords give read access also.
11.1. Authentication Protocol
The access to a user zone may be protected by an authentication protocol. Any one of four keys may be selected to
use with a user zone.
The authentication success is memorized and active as long as the chip is powered, unless a new authentication is
initialized or RST becomes active. If the new authentication request is not validated, the card loses its previous
authentication and it should be presented again. Only the last request is memorized d.
Note: Password and authentication may be presented at any time and in any order. If the trials limit has been
reached (after four consecutive incorrect attempts), the password verification or authentication process will not
be taken into account.
Figure 13. Password and Authentication Operations
Device (Card)
Card Number
Host (Reader)
COMPUTE Challenge A
Challenge A
AUTHENTICATION
VERIFY A
COMPUTE Challenge B
Challenge B
VERIFY B
READ ACCESS
WRITE ACCESS
VERIFY RPW
DATA
Read Password (RPW)
VERIFY CS
Checksum (CS)
VERIFY WPW
VERIFY CS
Write DATA
Write Password (WPW)
DATA
CS
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11.2. Checksum
The AT88SC0204C implements a data validity check function in the form of a checksum, which may function in
standard, authentication or encryption modes.
In the standard mode, the checksum is implemented as a Modification Detection Code (MDC), in which the host may
read an MDC from the device in order to verify that the data sent was received correctly.
In the authentication and encryption modes, the checksum becomes more powerful since it provides a bidirectional
data integrity check and data origin authentication capability in the form of a Message Authentication Code (MAC).
Only the host/device that carried out a valid authentication is capable of computing a valid MAC. While operating in the
authentication or encryption modes, the use of a MAC is required. For an ingoing command, if the device calculates a
MAC different from the MAC transmitted by the host, not only is the command abandoned but the mode is also reset. A
new authentication and/or encryption activation will be required to reactivate the MAC.
11.3. Encryption
The data exchanged between the device and the host during read, write and verify password commands may be
encrypted to ensure data confidentiality.
The issuer may choose to require encryption for a user zone by settings made in the configuration memory. Any one of
four keys may be selected for use with a user zone. In this case, activation of the encryption mode is required in order
to read/write data in the zone and only encrypted data will be transmitted. Even if not required, the host may elect to
activate encryption provided the proper keys are known.
11.4. Supervisor Mode
Enabling this feature allows the holder of one specific password to gain full access to all eight password sets, including
the ability to change passwords.
11.5. Modify Forbidden
No write access is allowed in a user zone protected with this feature at any time. The user zone must be written during
device personalization prior to blowing the security fuses.
11.6. Program Only
For a user zone protected by this feature, data within the zone may be changed from a “1” to a “0”, but never from a “0”
to a “1”.
12.
Initial Device Programming
To enable the security features of CryptoMemory, the device must first be personalized to set up several registers and
load in the appropriate passwords and keys. This is accomplished through programming the configuration memory of
CryptoMemory using simple write and read commands. To gain access to the configuration memory, the secure code
must first be successfully presented. For the AT88SC0204C device, the secure code is $E5 47 47. After writing and
verifying data in the configuration memory, the security fuses must be blown to lock this information in the device. For
additional information on personalizing CryptoMemory, please see the application notes Programming CryptoMemory
for Embedded Applications and Initializing CryptoMemory for Smart Card Applications (at www.Atmel.com).
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13.
Ordering Information
Ordering Code
Package
Voltage Range
Temperature Range
AT88SC0204C-MJ
AT88SC0204C-MP
M2 – J Module
M2 – P Module
2.7V–5.5V
Commercial (0°C–70°C)
AT88SC0204C-PU
AT88SC0204C-SU
8P3
8S1
Green compliant (exceeds
RoHS)/Industrial (−40°C–85°C)
2.7V–5.5V
2.7V–5.5V
AT88SC0204C-WI
7 mil wafer
Industrial (−40°C–85°C)
Package Type(1)
M2 – J Module
M2 – P Module
8P3
Description
M2 ISO 7816 Smart Card Module
M2 ISO 7816 Smart Card Module with Atmel® Logo
8-lead, 0.300” Wide, Plastic Dual Inline Package (PDIP)
8S1
8-lead, 0.150” Wide, Plastic Gull Wing Small Outline Package (JEDEC SOIC)
Note: 1. Formal drawings may be obtained from an Atmel sales office.
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14.
Packaging Information
Ordering Code: MJ
Ordering Code: MP
Module Size: M2
Module Size: M2
Dimension*: 12.6 x 11.4 [mm]
Dimension*: 12.6 x 11.4 [mm]
Glob Top: Round - ∅ 8.5 [mm]
Thickness: 0.58 [mm]
Pitch: 14.25 mm
Glob Top:
Square - 8.8 x 8.8 [mm]
Thickness: 0.58 [mm]
Pitch:
14.25 mm
*Note: The module dimensions listed refer to the dimensions of the exposed metal contact area. The actual
dimensions of the module after excise or punching from the carrier tape are generally 0.4 mm greater in both
directions (i.e., a punched M2 module will yield 13.0 x 11.8 mm).
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14.1. Ordering Code: SU
8S1 – JEDEC SOIC
C
1
E
E1
N
L
Top View
End View
COMMON DIMENSIONS
(Unit of Measure = mm)
e
b
A
MIN
1.35
0.10
MAX
1.75
0.25
NOM
NOTE
SYMBOL
A
–
–
A1
A1
b
0.31
0.17
4.80
3.81
5.79
–
0.51
0.25
5.05
3.99
6.20
C
D
E1
E
e
–
–
–
D
–
1.27 BSC
L
0.40
–
–
1.27
Side View
0˚
8˚
Note:
These drawings are for general information only. Refer to JEDEC Drawing MS-012, Variation AA for proper dimensions,
tolerances, datums, etc.
3/17/05
DRAWING NO. REV.
8S1
TITLE
1150 E. Cheyenne Mtn. Blvd.
Colorado Springs, CO 80906
8S1, 8-lead (0.150" Wide Body), Plastic Gull Wing
Small Outline (JEDEC SOIC)
C
17
2022JS–SMEM–3/09
14.2. Ordering Code: PU
8P3 – PDIP
E
1
E1
N
Top View
c
eA
End View
COMMON DIMENSIONS
(Unit of Measure = inches)
D
e
MIN
−
MAX
0.210
0.195
0.022
0.070
0.045
0.014
0.400
−
NOM
−
NOTE
SYMBOL
D1
A2 A
A
2
A2
b
0.115
0.014
0.045
0.030
0.008
0.355
0.005
0.300
0.240
0.130
0.018
0.060
0.039
0.010
0.365
−
5
6
6
b2
b3
c
D
3
3
4
3
D1
E
b2
L
0.310
0.250
0.325
0.280
b3
4 PLCS
E1
e
b
0.100 BSC
0.300 BSC
0.130
Side View
eA
L
4
2
0.115
0.150
Notes: 1. This drawing is for general information only; refer to JEDEC Drawing MS-001, Variation BA, for additional
information.
2. Dimensions A and L are measured with the package seated in JEDEC seating plane Gauge GS-3.
3. D, D1 and E1 dimensions do not include mold Flash or prortusions. Mold Flash or protrusions shall not
exceed 0.010 inch.
4. E and eA measured with the leads constrained to be perpendicular to datum.
5. Pointed or rounded lead tips are preferred to ease insertion.
6. b2 and b3 maximum dimensions do not include Dambar protrusions. Dambar protrusions shall not exceed
0.010 (0.25 mm).
01/09/02
DRAWING NO. REV.
TITLE
2325 Orchard Parkway
San Jose, CA 95131
8P3, 8-lead, 0.300" Wide Body, Plastic Dual
In-line Package (PDIP)
8P3
B
R
18
AT88SC0204C
2022JS–SMEM–3/09
AT88SC0204C
Appendix A. Revision History
Doc. Rev.
Date
Comments
2022JS
03/2009
Features Section – add ‘Green compliant (exceeds RoHS) to end of ‘Standard 8-lead
Plastic Packages’ bullet
Added Note to DC Characteristics table and applied to VCC and all 3 instances of VIH
symbols in table.
Ordering Information page: Add ‘Green compliant (exceeds
RoHS) to middle row of Temperature Range
Replace ‘Lead-free/Halogen-free. Keep industrial
Updated to 2009 Copyright.
2022IS
2022HS
2022HS
11/2008
04/2007
03/2007
Updated timing diagrams.
Final release version.
Implemented revision history.
Removed Industrial package offerings.
Removed 8Y4 offering.
Replaced User Zone, Memory Configuration, and Write Lock Example tables with new
information
19
2022JS–SMEM–3/09
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2022JS–SMEM–3/09
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