AT88SC1608-09ET-00 Atmel, AT88SC1608-09ET-00 Datasheet - Page 14

• Manufacturer Part Number: AT88SC1608-09ET-00
• Description: IC EEPROM 16KBIT 1MHZ M2E
• Manufacturer: Atmel
• Series: CryptoMemory®r

Specifications of AT88SC1608-09ET-00

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 16K (2K x 8)
• Speed: 1MHz
• Interface: Serial
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: M2 E, Smart Card Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

11.4
11.5
11.6
14
Acknowledge
Standby Mode
Acknowledge Polling
AT88SC1608
All addresses and data are serially transmitted to and from the device in 8-bit words. The device
sends a zero to acknowledge that it has received each byte. This happens during the ninth clock
cycle. During read operations, the host must pull the SDA line low during the ninth clock cycle to
acknowledge that it has received the data byte. Failure to transmit this ACK bit will terminate the
read operation.
The AT88SC1608 features a low-power standby mode that is enabled upon power-up and after
the receipt of the stop bit and the completion of any internal operations.
Once the internally-timed write cycle has started and the device inputs are disabled, acknowl-
edge polling can be initiated. This involves sending a start condition followed by the device
address representative of the operation desired. Only if the internal write cycle has completed
will the device respond with a “0”, allowing the sequence to continue.
Figure 11-1. Start and Stop Definition
Note:
Figure 11-2. Data Validity
The SCL input should be low when the device is idle. Therefore, SCL is low before a start condi-
tion and after a stop condition.
SDA
SCL
DATA STABLE
CHANGE
DATA
DATA STABLE
0971H–SMEM–6/08