CAT24C44LE datasheet(2/9 Pages) ONSEMI

tên linh kiện	CAT24C44LE

Giải thích chi tiết về linh kiện	256-Bit Serial Nonvolatile CMOS Static RAM

PDF	9 Pages

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CAT24C44

Doc. No. MD-1083, Rev. T

Characteristics subject to change without notice

POWER-UP TIMING(4)

Symbol

Parameter

Min.

Max.

Units

VCCSR

VCC Slew Rate

0.5

0.005

V/m

tpur

Power-Up to Read Operations

200

µs

tpuw

Power-Up to Write or Store Operation

MODE SELECTION(1)(2)

Software

Write Enable

Previous Recall

Mode

STORE

RECALL

Instruction

Latch

Hardware Recall(3)

NOP

Software Recall

RCL

Hardware Store(3)

NOP

SET

TRUE

Software Store

STO

SET

TRUE

X = Don’t Care

BLOCK DIAGRAM

ROW

DECODE

INSTRUCTION

COLUMN

DECODE

EEPROM ARRAY

STORE

RECALL

STATIC RAM

ARRAY

256-BIT

STORE

RECALL

INSTRUCTION

DECODE

4-BIT

COUNTER

CONTROL

LOGIC

VCC

VSS

Note:

(1) The store operation has priority over all the other operations.

(2) The store operation is inhibited when VCC is below ≈ 3.5V.

(3) NOP designates that the device is not currently executing an instruction.

(4) This parameter is tested initially and after a design or process change that affects the parameter.

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