參數(shù)資料
型號: SMJ55161
廠商: Texas Instruments, Inc.
英文描述: 262144 BY 16-BIT MULTIPORT VIDEO RAM
中文描述: 262144由16位多端口視頻內存
文件頁數(shù): 49/64頁
文件大小: 1505K
代理商: SMJ55161
SMJ55161
262144 BY 16-BIT
MULTIPORT VIDEO RAM
SGMS056D – MAY 1995 – REVISED OCTOBER 1997
49
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
PARAMETER MEASUREMENT INFORMATION
RAS
CASx
A0–A8
WE
DSF
TRG
DQ0–DQ15
tc(W)
tw(RL)
tw(RH)
tt
td(CHRL)
td(RLCH)
td(CLRH)
tw(CL)
th(RA)
tt
tsu(CA)
tsu(RA)
th(CLCA)
tw(CH)
1
2
3
th(SFR)
tsu(SFR)
th(SFC)
tsu(TRG)
tsu(WMR)
tsu(WCH)
tsu(WRH)
th(RLW)
th(CLW)
tsu(WCL)
th(RWM)
tsu(DQR)
tsu(DCL)
tw(WL)
th(CLD)
th(RLD)
Row
td(CARH)
td(CACH)
td(RLCA)
td(RLCA)
Block Address
A2–A8
th(RDQ)
td(RLCL)
td(CHRL)
th(TRG)
th(RLCA)
tsu(SFC)
th(RSF)
Figure 40. Block-Write-Cycle Timing (Early Write)
Table 12. Block-Write-Cycle State Table
CYCLE
STATE
2
1
3
Block-write operation (nonmasked)
H
Don’t care
Column mask
Block-write operation with nonpersistent write-per-bit
L
Write mask
Column mask
Block-write operation with persistent write-per-bit
Write-mask data
0: I/O write disable
1: I/O write enable
Column-mask data DQi – DQi + 3
(i = 0, 4, 8, 12)
L
Don’t care
Column mask
Example:
DQ0 — column 0 (address A1 = 0, A0 = 0)
DQ1 — column 1 (address A1 = 0, A0 = 1)
DQ2 — column 2 (address A1 = 1, A0 = 0)
DQ3 — column 3 (address A1 = 1, A0 = 1)
0: column-write disable
1: column-write enable
相關PDF資料
PDF描述
SMJ55166 262144 BY 16-BIT MULTIPORT VIDEO RAM
SMJ626162 524288 BY 16-BIT BY 2-BANK SYNCHRONOUS DYNAMIC RANDOM-ACCESS MEMORY
SML-010DT Chip LEDs with reflectors
SML-010FT Chip LEDs with reflectors
SML-010JT Chip LEDs with reflectors
相關代理商/技術參數(shù)
參數(shù)描述
SMJ55166 制造商:TI 制造商全稱:Texas Instruments 功能描述:262144 BY 16-BIT MULTIPORT VIDEO RAM
SMJ55166-75HKCM 制造商:Micross Components 功能描述:DRAM 2KX16 "VIDEO RAM" - Bulk
SMJ5821TS50 制造商:MICRO SEMI 功能描述:New
SMJ5C1008-25JDCM 制造商:Rochester Electronics LLC 功能描述:- Bulk
SMJ5C1008L-25JDCM 制造商:Texas Instruments 功能描述: