HM62G18512 Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics

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HM62G18512

8M Synchronous Fast Static RAM (512k-word × 18-bit)

Hitachi -> Renesas Electronics 

HM62G18512 Series

TAP AC Characteristics (Ta = 0 to 70°C, [Tj max = 110°C])

Parameter

Symbol Min

Max

Unit Note

Test clock cycle time

t THTH

67

—

ns

Test clock high pulse width

t THTL

30

—

ns

Test clock low pulse width

t TLTH

30

—

ns

Test mode select setup

t MVTH

10

—

ns

Test mode select hold

t THMX

10

—

ns

Capture setup

t CS

10

—

ns

1

Capture hold

t CH

10

—

ns

1

TDI valid to TCK high

t DVTH

10

—

ns

TCK high to TDI don’t care

t THDX

10

—

ns

TCK low to TDO unknown

t TLQX

0

—

ns

TCK low to TDO valid

t TLQV

—

20

ns

Note: 1. tCS + tCH defines the minimum pause in RAM I/O pad transitions to assure pad data capture.

TAP Test Conditions

• Input pulse levels: 0 to 3.0 V

• Input and output timing reference levels: 1.5 V

• Input rise and fall time: 2 ns (10% to 90%) (typ)

• Output Load: See figure

DUT

TDO

Z0 = 50 Ω

VT = 1.5 V

50 Ω

17

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