Chapter 10: Replacing Serial EEPROMs with MAX II User Flash Memory
List of Vendors and Devices
10–3
Table 10–3.
Atmel Corporation Device Characteristics
Interface
Type
EEPROM
EEPROM
EEPROM
EEPROM
EEPROM
EEPROM
EEPROM
EEPROM
EEPROM
EEPROM
EEPROM
EEPROM
EEPROM
EEPROM
Device
AT25020
AT25040
AT25020A
AT25040A
AT25080
AT25080A
AT24C02
AT24C04
AT24C08
AT24C02A
AT24C04A
AT24C08A
AT34C02
AT93C56
Size
(Bits)
2,048
4,096
2,048
4,096
8,192
8,192
2,048
4,096
8,192
2,048
4,096
8,192
2,048
2,048
SCI
—
—
—
—
—
—
—
—
—
—
—
—
—
—
SPI
v
v
v
v
v
v
—
—
—
—
—
—
—
—
2-Wire
—
—
—
—
—
—
v
v
v
v
v
v
v
—
3-Wire
—
—
—
—
—
—
—
—
—
—
—
—
—
v
IC
2
Microwire
—
—
—
—
—
—
—
—
—
—
—
—
—
—
f
MAX
3 MHz
3 MHz
20 MHz
20 MHz
3 MHz
20 MHz
400 kHz
400 kHz
400 kHz
400 kHz
400 kHz
400 kHz
400 kHz
2 MHz
Operating
Voltage (V)
2.7 (2.7 ~ 5.5)
2.7 (2.7 ~ 5.5)
2.7 (2.7 ~ 5.5)
1.8 (1.8 ~ 5.5)
2.7 (2.7 ~ 5.5)
1.8 (1.8 ~ 5.5)
2.7 (2.7 ~ 5.5)
1.8 (1.8 ~ 5.5)
2.7 (2.7 ~ 5.5)
1.8 (1.8 ~ 5.5)
2.7 (2.7 ~ 5.5)
1.8 (1.8 ~ 5.5)
2.7 (2.7 ~ 5.5)
1.8 (1.8 ~ 5.5)
2.7 (2.7 ~ 5.5)
1.8 (1.8 ~ 5.5)
2.7 (2.7 ~ 5.5)
1.8 (1.8 ~ 5.5)
2.7 (2.7 ~ 5.5)
1.8 (1.8 ~ 5.5)
2.7 (2.7 ~ 5.5)
1.8 (1.8 ~ 5.5)
2.7 (2.7 ~ 5.5)
1.8 (1.8 ~ 5.5)
2.7 (2.7 ~5.5)
2.5 (2.5 ~ 5.5)
1.8 (1.8 ~5.5)
2.7 (2.7 ~5.5)
2.5 (2.5 ~ 5.5)
1.8 (1.8 ~5.5)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
EEPROM
AT93C66
4,096
—
—
—
v
—
—
2 MHz
Note to
(1) The MAX II device supports two different V
CCINT
of operating voltage ranges, which are 2.375 to 2.625 V, and 3.0 to 3.6 V; the MAX IIG device
supports the 1.71 to 1.89 V operating voltage range.
Table 10–4.
Catalyst Semiconductor, Inc. Device Characteristics (Part 1 of 2)
Interface
Type
EEPROM
EEPROM
EEPROM
EEPROM
EEPROM
Device
CAT93C56
CAT93C57
CAT93C66
CAT34WC02
CAT24WC03
Size
(Bits)
2,048
2,048
4,096
2,048
2,048
SCI
—
—
—
—
—
SPI
—
—
—
—
—
2-Wire
—
—
—
—
—
3-Wire
—
—
—
—
—
I
2
C
—
—
—
v
v
Microwire
v
v
v
—
—
f
MAX
1 MHz
1 MHz
1 MHz
400 kHz
400 kHz
Operating
Voltage (V)
1.8 to 6.0
1.8 to 6.0
1.8 to 6.0
1.8 to 6.0
1.8 to 6.0