AT24C64SC_14 Datasheet, PDF (1/13 Pages) ATMEL Corporation – Schmitt Trigger, Filtered Inputs for Noise Suppression

Features
• Low-voltage and Standard-voltage Operation, V_CC = 2.7V to 5.5V
• Internally Organized 4096 x 8, 8192 x 8
• Two-wire Serial Interface
• Schmitt Trigger, Filtered Inputs for Noise Suppression
• Bidirectional Data Transfer Protocol
• 400 kHz Compatibility
• 32-byte Page Write Mode (Partial Page Writes Allowed)
• Self-timed Write Cycle (5 ms max)
• High Reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
– ESD Protection: >3,000V
Description
The AT24C32SC/64SC provides 32,768/65,536 bits of serial electrically erasable and
programmable read-only memory (EEPROM) organized as 4096/8192 words of 8 bits
each. The devices are optimized for use in smart card applications where low-power
and low-voltage operation may be essential. The devices are available in several stan-
dard ISO 7816 smart card modules (see Ordering Information, page 11). All devices
are functionally equivalent to Atmel serial EEPROM products offered in standard IC
packages (PDIP, SOIC, TSSOP), with the exception of the slave address and write
protect functions, which are not required for smart card applications.
Table 1. Pin Configurations
Pad Name
Description
ISO Module Contact
VCC
Power Supply Voltage
C1
GND
Ground
C5
SCL
Serial Clock Input
C3
SDA
Serial Data Input/Output
C7
NC
No Connect
C2, C4, C6, C8
Figure 1. Card Module Contact
VCC = C1
NC = C2
SCL = C3
NC = C4
C5 = GND
C6 = NC
C7 = SDA
C8 = NC
Two-wire
Serial EEPROM
Smart Card
Modules
32K (4096 x 8)
64K (8192 x 8)
AT24C32SC
AT24C64SC
1660B–SEEPR–04/04
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