N64S818HAT21I datasheet(2/13 Pages) ONSEMI

Part #	N64S818HAT21I

Description	64 kb Low Power Serial SRAMs

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Manufacturer	ONSEMI [ON Semiconductor]

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N64S818HA

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2

SO

NC

VSS

VCC

SCK

SI

CS

HOLD

VCC

SCK

SI

HOLD

SO

NC

VSS

CS

1

SOIC−8

TSSOP−8

Figure 1. Pin Connections

(Top View)

Table 1. DEVICE OPTIONS

Part Number

Density

Power

Supply (V)

Speed (MHz)

Package

Typical Standby

Current

Read/Write

Operating Current

N64S818HAS2

64 Kb

1.8

16

SOIC

200 nA

3 mA @ 1 Mhz

N64S818HAT2

TSSOP

Table 2. PIN NAMES

Pin Name

Pin Function

CS

Chip Select Input

SCK

Serial Clock Input

SI

Serial Data Input

SO

Serial Data Output

HOLD

Hold Input

NC

No Connect

VCC

Power

VSS

Ground

64 Kb

SRAM

Array

Decode

Logic

Clock

Circuitry

SCK

Data In

Receiver

SDI

Data Out

Buffer

SDO

Figure 2. Functional Block Diagram

HOLD

CS

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