參數(shù)資料
型號(hào): BQ3287A
廠商: TEXAS INSTRUMENTS INC
元件分類: XO, clock
英文描述: 1 TIMER(S), REAL TIME CLOCK, PDIP24
封裝: T TYPE MODULE, DIP-24
文件頁(yè)數(shù): 5/6頁(yè)
文件大?。?/td> 77K
代理商: BQ3287A
5
Sept. 1996 D
bq3287/bq3287A
Ordering Information
Data Sheet Revision History
Change No.
Page No.
Description
Nature of Change
1
1
Address strobe input
Clarification
1
2
Power-fail detect voltage V
PFD
Was 4.1 min, 4.25 max;
is 4.0 min, 4.35 max
2
1
Was : “As shippedfromBenchmarq,thebackupcell
is electrically isolatedfromthememory.”
Is:“As shippedfromBenchmarq,thebackupcell is
electrically isolatedfromtheactivecircuitry.”
Clarification
2
2, 4
Changed temperature from N (industrial, -40 to
+85°C) to I (extended, -20 to +70°C)
Specification change
3
2
I
RCL
max. was -275; is now -185. Pull-down = 30KChanged values
I
MOTH
Notes:
Change 1 = Nov. 1992 B changes from J une 1991 A.
Change 2 = Nov. 1995 C changes from Nov. 1992 B.
Change 3 = Sept. 1996 D changes from Nov. 1995 C.
*Contact factory for availability.
bq3287
MT -
Package Option:
MT = T-typemodule
Device:
bq3287 Real-TimeClock Module
R AM Clear Option:
A = RAM clear on pin 21
nomark = Noconnect on pin 21
Temperature:
blank = Commercial (0 to+70°C)
I = Extended*(-20 to+70°C)
相關(guān)PDF資料
PDF描述
BQ3287A-I 1 TIMER(S), REAL TIME CLOCK, PDIP24
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BQ3287MT-K 1 TIMER(S), REAL TIME CLOCK, DMA24
BQ3385P 1 TIMER(S), REAL TIME CLOCK, PDIP24
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