IS61NSCS25672 查看數據表（PDF） - Integrated Silicon Solution

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IS61NSCS25672

ΣRAM 256K x 72, 512K x 36 18Mb Synchronous SRAM

Integrated Silicon Solution 

IS61NSCS25672

IS61NSCS51236

ISSI ®

PIN DESCRIPTION TABLE

Symbol

NC

NC

NC

NC

W

VCC

VCCQ

GND

ZQ

Pin Location

Description

Type

Comments

C5, D4, D5, D7, D8, K4,

K8, K9, T4, T5, T7,

T8, U3, U5, U7, U9

No Connect

—

Not connected to die (all versions)

B5

No Connect

—

Not connected to die (x72 version)

C7

No Connect

—

Not connected to die (x72/x36 versions)

A1, A2, B1, B2, B4, B9,

C1, C2, C3, C8, D1, D2,

E1, E10, F10, F11, G10,

G11, H10, H11, J10, J11,

L1, L2, M1, M2, N1, N2,

P1, P2, R2, R11, T10,

T11, U10, U11, V10,

V11, W10, W11

No Connect

—

Not connected to die (x36 version)

B6

Write

Input

Active Low

E5, E6, E7, G5, G7,

J5, J7, L5, L7, N5,

Core Power Supply

Input

N7, R5, R6, R7

1.8 V Nominal

E3, E4, E8, E9, J3, J4,

J8, J9, L3, L4, L8, Output Driver Power Supply

Input

L9, N3, N4, N8, N9,

R3, R4, R8, R9

1.8 V or 1.5 V Nominal

D3, D9, F3, F4, F5, F7,

F8, F9, H3, H4, H5, H7,

H8, H9, K5, K7, M3, M4,

Ground

Input

—

M5, M7, M8, M9, P3, P4,

P5, P7, P8, P9, T3, T9

F6

Output Impedance Control

Input

Low = Low Impedance [High Drive]

High = High Impedance [Low Drive]

Default = High

Integrated Silicon Solution, Inc. — 1-800-379-4774

5

ADVANCE INFORMATION Rev. 00A

06/19/01

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