參數(shù)資料
型號(hào): SMJ34020AHT
廠商: Texas Instruments, Inc.
英文描述: GRAPHICS SYSTEM PROCESSOR
中文描述: 圖形系統(tǒng)處理器
文件頁(yè)數(shù): 80/92頁(yè)
文件大?。?/td> 1458K
代理商: SMJ34020AHT
SMJ34020A
GRAPHICS SYSTEMPROCESSOR
SGUS011B – APRIL 1991 – REVISED AUGUST 1995
80
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
local-bus timing: RAS, CAS0–CAS3, WE, TR/QE, and SF (see Notes 4 and 8 and Figure 42)
(continued)
NO.
’34020A-32
MIN
’34020A-40
MIN
UNIT
MAX
MAX
97
tsu(WEL-CEL)
Setup time, write low before CAS no
longer high (on write cycles)
tQ–15
tQ– 13.5
ns
98
tw(REH)
tw(REL)
tw(CEH)
tw(CEL)
Pulse duration, RAS high
4tQ–12+ s
4nQ–12+ s
2tQ–12
2tQ–12
4tQ– 10+ s
4ntQ– 4+ s
2tQ– 10
2tQ– 8
ns
99
Pulse duration, RAS low
ns
100
Pulse duration, CAS high
ns
101
Pulse duration, CAS low
ns
102
td(REL-CEH)
Delay time, RAS low to CAS no longer
low
4tQ–12+ s
4tQ– 4+s
ns
NOTES:
4. s= tQ if using the clock stretch;
s= 0 otherwise
8. Parameter 96 has been eliminated.
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