LRS1331 datasheet(3/26 Pages) SHARP

Part #	LRS1331

Description	Stacked Chip 16M Flash Memory and 4M SRAM

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Manufacturer	SHARP [Sharp Corporation]

Direct Link	http://sharp-world.com/

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Stacked Chip (16M Flash & 4M SRAM)

LRS1331

Data Sheet

3

Table 1. Pin Descriptions

DESCRIPTION

TYPE

A0 to A16

Address Inputs (Common)

Input

F-A17 to F-A19

Address Inputs (Flash)

Input

S-A17

Address Input (SRAM)

Input

F-CE

Chip Enable Input (Flash)

Input

S-CE1, S-CE2

Chip Enable Inputs (SRAM)

Input

F-WE

Write Enable Input (Flash)

Input

S-WE

Write Enable Input (SRAM)

Input

F-OE

Output Enable Input (Flash)

Input

S-OE

Output Enable Input (SRAM)

Input

S-LB

SRAM Byte Enable Input (DQ0 to DQ7)

Input

S-UB

SRAM Byte Enable Input (DQ8 to DQ15)

Input

F-RP

Deep Power Down Input (Flash)

Block erase and Word Write: VIH

Read: VIH

Deep Power Down: VIL

Input

F-WP

Write Protect Input (Flash)

Two Boot Blocks Locked: VIL

Input

F-RY/BY

Ready/Busy Output(Flash)

During an Erase or Write operation: VOL

Block Erase and Word Write Suspend: HIGH-Z

Deep Power Down: VOH

Output

DQ0 to DQ15

Data Input and Outputs (Common)

Input/Output

F-VCC

Power Supply (Flash)

Power

S-VCC

Power Supply (SRAM)

Power

F-VPP

Write, Erase Power Supply (Flash)

Block Erase and Word Write: F-VPP = VPPLK

All Blocks Locked: F-VPP < VPPLK

Power

F-GND

Ground (Flash)

Power

S-GND

Ground (SRAM)

Power

NC

No Connection

—

T1 to T5

Test Pins (Should be Open)

—

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LRS1331 Datasheet(PDF) 3 Page - Sharp Corporation

LRS1331 Datasheet(HTML) 3 Page - Sharp Corporation

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