參數(shù)資料
型號(hào): TMS27C020-20FME
廠商: Texas Instruments, Inc.
英文描述: READ-ONLY MEMORIES
中文描述: 只讀存儲(chǔ)器
文件頁數(shù): 10/15頁
文件大?。?/td> 206K
代理商: TMS27C020-20FME
TMS27C020 262144 BY 8-BIT UV ERASABLE
TMS27PC020 262144 BY 8-BIT
PROGRAMMABLE READ-ONLY MEMORIES
SMLS020C – NOVEMBER 1990 – REVISED SEPTEMBER 1997
10
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
PARAMETER MEASUREMENT INFORMATION
2.08 V
RL = 800
CL = 100 pF
(see Note A)
Output
Under Test
2 V
0.8 V
2 V
0.8 V
2.4 V
0.4 V
NOTES: A. CL includes probe and fixture capacitance.
B. The ac testing inputs are driven at 2.4 V for logic high and 0.4 V for logic low. Timing
measurements are made at 2 V for logic high and 0.8 V for logic low for both inputs
and outputs.
Figure 2. The ac Testing Output Load Circuit and Waveform
A0–A17
E
Addresses Valid
ta(A)
ta(E)
G
DQ0–DQ7
Hi-Z
ten(G)
tv(A)
tdis
Output Valid
VIH
VIL
VIH
VIL
VIH
VIL
VIH
VIL
Hi-Z
Figure 3. Read-Cycle Timing
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