AT88SC0104CA-SU Atmel, AT88SC0104CA-SU Datasheet - Page 4

• Manufacturer Part Number: AT88SC0104CA-SU
• Description: IC EEPROM 1KBIT 4MHZ 8SOIC
• Manufacturer: Atmel
• Series: CryptoMemory®r

Specifications of AT88SC0104CA-SU

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 1K (128 x 8)
• Speed: 4MHz
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (3.9mm Width)
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Package Type: SOIC
• Mounting: Surface Mount
• Pin Count: 8
• Operating Temperature Classification: Industrial
• Organization: 128 B x 8
• Interface Type: 2-Wire Serial, I2C
• Maximum Clock Frequency: 4 MHz
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Current: 5 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• For Use With: AT88SC-SDK1 - KIT TUEMA DK CRYPTOMEM SMARTCARDAT88SC-DK1 - KIT DEV FOR AT88SCXXXXC FAMILY
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.
5.
5.1.
5.2.
5.3.
5.4.
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Figure 3.
Pin Descriptions
Supply Voltage (V
The V
Clock (SCL/CLK)
When using the asynchronous T = 0 protocol, the CLK (SCL) input provides 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 using the synchronous protocol, data clocking is done on the positive edge of the clock when writing to the
device and on the negative edge of the clock when reading from the device.
Reset (RST)
The AT88SC0104CA provides an ISO 7816-3 compliant asynchronous Answer-To-Reset (ATR) sequence. Upon
activation of the reset sequence, the device outputs bytes contained in the 64-bit Answer-To-Reset register. An internal
pull-up on the RST input pad allows the device to operate in synchronous mode without bonding RST. The
AT88SC0104CA does not support an Answer-To-Reset sequence in the synchronous mode of operation.
Serial Data (SDA/IO)
The SDA/IO 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/IO and
V
SDA/IO. 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.
AT88SC0104CA
Connection Diagram
CC
. The value of this resistor and the system capacitance loading the SDA/IO bus will determine the rise time of
CC
Microprocessor
input is a 2.7V to 3.6V positive voltage supplied by the host.
Connection Diagram
CC
)
2.7v - 5.5v
SDA
SCL
CryptoMemory
2.7v - 3.6v
5200ES–CRYPT–08/09