TMS27C128 131 072-BIT UV ERASABLE PROGRAMMABLE READ-ONLY MEMORY

TMS27PC128 131 072-BIT PROGRAMMABLE READ-ONLY MEMORY

SMLS128E–OCTOBER 1984–REVISED JANUARY 1993

POST OFFICE BOX 1443

77251–1443

11

PARAMETER MEASUREMENT INFORMATION

A0–A13

DQ0–DQ7

VPP

VCC

Address Stable

VIH

VIL

VPP

VCC

VCC‡

VCC

Program

Verify

tsu(A)

th(A)

tsu(D)

tsu(VPP)

tsu(VCC)

tsu(E)

th(D)

tsu(G)

tw(IPGM)

tdis(G)†

Data In Stable

Data Out

Valid

Address

N + 1

E

PGM

G

VIH

VIL

VIH

VIL

VIH

VIL

ten(G)†

† tdis(G) and ten(G) are characteristics of the device but must be accommodated by the programmer.

13-V VPP and 6.5-V VCC for SNAP! Pulse programming.

Figure 4. Program Cycle Timing