25LC256-I/ST Microchip Technology, 25LC256-I/ST Datasheet - Page 4

• Manufacturer Part Number: 25LC256-I/ST
• Description: IC EEPROM 256KBIT 10MHZ 8TSSOP
• Manufacturer: Microchip Technology

Specifications of 25LC256-I/ST

• Memory Size: 256K (32K x 8)
• Package / Case: 8-TSSOP
• Operating Temperature: -40°C ~ 85°C
• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Speed: 10MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.5 V ~ 5.5 V
• Organization: 32 K x 8
• Interface Type: SPI
• Maximum Clock Frequency: 10 MHz
• Access Time: 50 ns
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.5 V
• Maximum Operating Current: 6 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 2.5 V, 5.5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

25AA256/25LC256
TABLE 1-2:
TABLE 1-3:
DS21822C-page 4
AC CHARACTERISTICS
Param.
17
18
19
20
21
AC Waveform:
Timing Measurement Reference Level
No.
Note 1: This parameter is periodically sampled and not 100% tested.
Note 1: For V
V
V
V
C
Input
Output
LO
HI
HI
L
= 100 pF
2: T
3: This parameter is not tested but ensured by characterization. For endurance estimates in a specific
2: For Vcc > 4.0V
= V
= 4.0V
= 0.2V
T
T
T
T
—
Sym.
WC
HH
HZ
HV
complete.
application, please consult the Total Endurance™ Model which can be obtained from our web site:
www.microchip.com.
CC
WC
- 0.2V
begins on the rising edge of CS after a valid write sequence and ends when the internal write cycle is
HOLD Hold Time
HOLD Low to Output
High-Z
HOLD High to Output
Valid
Internal Write Cycle Time
Endurance
CC
AC CHARACTERISTICS (CONTINUED)
AC TEST CONDITIONS
4.0V
Characteristic
(Note 1)
(Note 2)
0.5 V
0.5 V
—
—
Industrial (I):
Automotive (E): T
CC
CC
Min.
160
160
1M
20
40
80
30
60
30
60
—
Preliminary
Max.
—
—
—
—
—
—
—
—
—
—
5
T
A
A
= -40°C to +85°C
= -40°C to +125°C
Cycles
Units
E/W
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
4.5V
2.5V
1.8V
4.5V
2.5V
1.8V
4.5V
2.5V
1.8V
(N
(N
OTE
OTE
2)
3)
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
 2003 Microchip Technology Inc.
Test Conditions
V
V
CC
CC
5.5V
4.5V
2.5V
5.5V(Note 1)
4.5V(Note 1)
2.5V(Note 1)
5.5V
4.5V
2.5V
= 1.8V to 5.5V
= 2.5V to 5.5V