CAT93C56XI ON Semiconductor, CAT93C56XI Datasheet - Page 6

• Manufacturer Part Number: CAT93C56XI
• Description: IC EEPROM 2KBIT 2MHZ 8SOIC
• Manufacturer: ON Semiconductor

Specifications of CAT93C56XI

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 2K (256 x 8 or 128 x 16)
• Speed: 2MHz
• Interface: Microwire, 3-Wire Serial
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (5.3mm Width), 8-SOP, 8-SOEIAJ
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

logical “1” start bit, a 2−bit (or 4−bit) opcode, 7−bit address
(CAT93C57) / 8−bit address (CAT93C56) (an additional bit
8. Address bit A8 for 256x8 organization and A7 for 128x16 organization are “Don’t Care” bits, but must be kept at either a “1” or “0” for READ,
Table 10. INSTRUCTION SET
Instruction
The format for all instructions sent to the device is a
WRITE and ERASE commands.
ERASE
WRITE
EWEN
EWDS
WRAL
READ
ERAL
93C56 (Note 8)
93C56 (Note 8)
93C56 (Note 8)
93C56 (Note 8)
93C56 (Note 8)
93C56 (Note 8)
93C56 (Note 8)
Device Type
93C57
93C57
93C57
93C57
93C57
93C57
93C57
Start
Bit
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Opcode
10
10
01
01
00
00
00
00
00
00
00
00
11
11
http://onsemi.com
11XXXXXXX
00XXXXXXX
10XXXXXXX
01XXXXXXX
00XXXXXX
10XXXXXX
01XXXXXX
11XXXXXX
A8−A0
A7−A0
A8−A0
A7−A0
A8−A0
A7−A0
x8
6
Address
when organized X8) and for write operations a 16−bit data
field (8−bit for X8 organizations). The instruction format is
shown in Instruction Set table.
00XXXXXX
10XXXXXX
01XXXXXX
11XXXXXX
11XXXXX
00XXXXX
10XXXXX
01XXXXX
A7−A0
A6−A0
A7−A0
A6−A0
A7−A0
A6−A0
x16
D7−D0
D7−D0
D7−D0
D7−D0
x8
Data
D15−D0
D15−D0
D15−D0
D15−D0
x16
Read Address
Clear Address
Write Address
Write Disable
Write Enable
Comments
Addresses
Addresses
Clear All
Write All
AN–A0
AN–A0
AN–A0