LE25LB642CT

Pin Assignment

Pin Descriptions

PIN.1

VDD

Power supply

PIN.2

HOLD

Hold

PIN.3

SCK

Serial clock

PIN.4

SI

Serial data input

PIN.5

VSS

Ground

PIN.6

WP

Write protect

PIN.7

SO

Serial data output

PIN.8

CS

Chip select

Block Diagram

ADDRESS

BUFFERS

&

LATCHES

X-

DECODER

EEPROM

Cell Array

Y-DECODER

I/O BUFFERS

&

DATA LATCHES

CONTROL

LOGIC

SERIAL INTERFACE

CS

SCK

SI

SO

WP

HOLD

Specifications

Absolute Maximum Rating/If an electrical stress exceeding the maximum rating is applied, the device may be damaged.

Parameter

Symbol

Conditions

Ratings

Unit

Storage temperature

-65 to +150

°C

Supply voltage

-0.5 to 4.6

V

DC input voltage

-0.5 to VDD+0.5

V

Overshoot voltage (below 20ns)

-1.0 to VDD+0.5

V

Operating Conditions

Parameter

Symbol

Conditions

Ratings

Unit

Operating temperature

-40 to +85

°C

Operating supply voltage

1.8 to 3.6

V

DC Electrical Characteristics

Parameter

Symbol

Conditions

min

typ

max

Unit

No.NA1471-2/14

CS = 0.1VDD, HOLD = WP = 0.9VDD

SI = 0.1VDD/0.9VDD, SO = Open

Operating frequency = 5MHz, VDD = 3.6V

1

mA

CS = 0.1VDD, HOLD = WP = 0.9VDD

SI = 0.1VDD/0.9VDD, SO = Open

Operating frequency = 5MHz, VDD = 2.5V

0.5

mA

Supply current when reading

ICCR

CS = 0.1VDD, HOLD = WP = 0.9VDD

SI = 0.1VDD/0.9VDD, SO = Open

Operating frequency = 3MHz, VDD = 1.8V

0.3

mA

Supply current when writing

ICCW

VDD = 3.6V., VIN = 0.1VDD/0.9VDD,

tWC=10ms

3

mA

1

1.52 x 1.02 x 0.35(max)

Bottom view

2

3

6

8

4

75