參數資料
型號: 7643
英文描述: IrDA. protocol handler plus endec for DCE Apps, -40C to +85C, 18-SOIC 300mil, TUBE
中文描述: 7643Group數據表數據表1369K/JUL.30.03
文件頁數: 24/120頁
文件大?。?/td> 1369K
代理商: 7643
Rev.1.00 Jul 30, 2003 page 24 of 119
7643 Group
TIMERS
The 7643 group has three 8-bit timers: timer 1, timer 2, and timer 3.
All timers are down count timers. When the timer reaches “00
16
”,
an underflow occurs at the next count pulse and the correspond-
ing timer latch is reloaded into the timer and the count is
continued. When a timer underflows, the interrupt request bit cor-
responding to that timer is set to “1”.
Fig. 19 Timer block diagram
P5
1
/T
OUT
/X
COUT
Timer 1 interrupt
request
Timer 2 interrupt
request
Timer 3 interrupt
request
Timer 1 count
source select bit
“0”
φ
/ 8
f(X
CIN
) / 2
“1”
Timer 1 count
stop bit
Timer 1 latch (8)
Timer 1 (8)
Timers 1, 2 write control
bit
Timers 1, 2 write control
bit
“0”
“1”
Timer 2 count
source select bit
Timer 2 latch (8)
Timer 2 (8)
φ
T
OUT
output control bit
“0”
“1”
T
OUT
output active
edge switch bit
T
OUT
output
control bit
T
OUT
source
select bit
Q
T
Q
Q
T
Q
T
OUT
output control bit
“0”
“1”
T
OUT
output active
edge switch bit
φ
/ 8
Timer 3 count
source select bit
Timer 3 latch (8)
Timer 3 (8)
“0”
“1”
Data bus
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765-11E 8 BIT INPUT/OUTPUT EXPANDER, I2C INTERFACE, -40C to +125C, 20-QFN, TUBE
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相關代理商/技術參數
參數描述
764-3"x36yd-Red 功能描述:膠帶 764 RED 3X36 YD BULK RoHS:否 制造商:3M Electronic Specialty 產品:Tapes 類型:Shielding 描述/功能:EMI/RFI Foil Shielding Tape 顏色: 材料:Copper Foil 寬度:1 in x 18 yds
764-3"x36yd-White 功能描述:膠帶 WHITE 3X36YD BULK RoHS:否 制造商:3M Electronic Specialty 產品:Tapes 類型:Shielding 描述/功能:EMI/RFI Foil Shielding Tape 顏色: 材料:Copper Foil 寬度:1 in x 18 yds
764-3"x36yd-Yellow 功能描述:膠帶 764 YELLOW 3X36 YD BULK RoHS:否 制造商:3M Electronic Specialty 產品:Tapes 類型:Shielding 描述/功能:EMI/RFI Foil Shielding Tape 顏色: 材料:Copper Foil 寬度:1 in x 18 yds
7643_06 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER
76430 制造商:Brady Corporation 功能描述:TAPE, BARRICADE, BLACK/PHOSPHORESCENT, 2INX5YD; Tape Type:Safety, Hazard Warning; Tape Backing Material:Polyester Film; Tape Width - Metric:50.8mm; Tape Width - Imperial:2"; Tape Length - Metric:4.572m; Tape Length - Imperial:5yard ;RoHS Compliant: NA