AT24C512SC_14 Datasheet, PDF (1/14 Pages) ATMEL Corporation – Low-voltage and Standard-voltage Operation

Features
• Low-voltage and Standard-voltage Operation, VCC = 2.7V–5.5V
• Internally Organized 65,536 x 8
• Two-wire Serial Interface
• Schmitt Triggers, Filtered Inputs for Noise Suppression
• Bidirectional Data Transfer Protocol
• 1 MHz (5V) and 400 kHz (2.7V) Compatibility
• 128-byte Page Write Mode (Partial Page Writes Allowed)
• Self-timed Write Cycle (5 ms Max)
• High Reliability
– Endurance: 100,000 Write Cycles
– Data Retention: 40 Years
– ESD Protection: >4000V
Description
The AT24C512SC provides 524,288 bits of serial electrically erasable and program-
mable read only memory (EEPROM) organized as 65,536 words of 8 bits each. This
device is optimized for use in smart card applications where low-power and low-volt-
age operation may be essential. This device is available in a standard ISO 7816 smart
card module (see Ordering Information, page 11). All devices are functionally equiva-
lent to Atmel serial EEPROM products offered in standard IC packages (PDIP, SOIC,
TSSOP, dBGA), 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 Module
512K (65,536 x 8)
AT24C512SC
1933B–SEEPR–04/04
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