LE24LB642CSTL-TFM-H SANYO, LE24LB642CSTL-TFM-H Datasheet - Page 10

• Manufacturer Part Number: LE24LB642CSTL-TFM-H
• Description: IC EEPROM 64KBIT 400KHZ WLP6
• Manufacturer: SANYO

Specifications of LE24LB642CSTL-TFM-H

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 64K (8K x 8)
• Speed: 400kHz
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 6-XFBGA, 6-WLBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 869-1238-2; LE24LB642CS-TFM-H

3) Notes on write protect operation
4) Precautions when turning on the power
Notes:
A. If it is not possible to satisfy the instruction 1 in Note above, and SDA is set to low during power rise
WP Setup time
WP Hold time
Power rise time
Power off time
Power bottom voltage
This product prohibits all 64k bit writing when the WP pin is high. To ensure full write protection, the WP is set high
for all periods from the start condition to the stop condition, and the conditions below must be satisfied.
This product contains a power-on reset circuit for preventing the inadvertent writing of data when the power is
turned on. The following conditions must be met in order to ensure stable operation of this circuit. No data
guarantees are given in the event of an instantaneous power failure during the internal write operation.
1) The SDA pin must be set to high and the SCL pin to low or high.
2) Steps must be taken to ensure that the SDA and SCL pins are not placed in a high-impedance state.
After the power has stabilized, the SCL and SDA pins must be controlled as shown below, with both pins set to high.
SDA
SCL
WP
V DD
SCL
SDA
Item
Item
V DD
0V
t SU.WP
Start condition
t DH
t LOW
t SU.WP
t HD.WP
t RISE
t OFF
V bot
t SU.DAT
LE24LB642CS
Symbol
Symbol
t OFF
V DD
SCL
SDA
min
min
t RISE
600
600
10
V DD =1.7 to 3.6V
V DD =1.7 to 3.6V
typ
typ
Vbot
max
max
Stop condition
100
0.2
t HD.WP
t SU.DAT
unit
unit
ms
ms
ns
ns
No.A1464-10/11
V