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參數(shù)資料
| 型號： | R8A66150SP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 12 I/O, PIA-GENERAL PURPOSE, PDSO20 |
| 封裝： | SOP-20 |
| 文件頁數(shù)： | 6/10頁 |
| 文件大?。?/td> | 551K |
| 代理商： | R8A66150SP |
R8A66150SP
REJ03F0257-0100
Rev.1.00
Jan.08.2008
Page 3 of 7
DESCRIPTION OF OPERATION
(1) When power ON, the status of DO and D1~D12 terminals are not determined. These terminals are turn
to high-impedance when "L" is input to the /S terminal.
(2) By the negative edge of /CS, the status of D1~D12 terminals is loaded on shift register 1.
(3) Synchronous to the negative edge of CLK, 12-bit loaded data is serial output from the DO terminal.
(4) Synchronous to the positive edge of CLK, 12-bit serial input data from DI is write into the shift register 2.
(5) The 13th and following shift clock pulse are ignored and the serial data input operation is stopped.
And the DO terminal becomes high-impedance ("High-Z").
(6) By the positive edge of /CS, input data described in (4) is output to D1~D12 terminals.
(7) Shift register 1 loads the AND tie data of external parallel input data and latched data on parallel output
latch.
(8) If the /CS is changed from "L" to "H" before reaches the 12th bit of CLK, parallel output latch latches
data which has been written on shift register 2 and output it to D1~D12 terminals.
Serial data after this since is ignored and the DO terminal becomes high-impedance.
(9) Input/output mode set to D1~D12 terminals is done by the serial input data to the DI terminal.
Terminals which "H" is written are set to input, and "L" is written are set to output.
OPERATION TIMING CHART
S
CS
1
234
567
89
10
11
12
13
CLK
DI
DO
D1
DI1
DO1
D2
DI2
DO2
D12
DI12
DO12
1 Sequence
DO1
DO2
DO3
DO4
DO5
DO6
DO7
DO8
DO9
DO10 DO11 DO12
DI1
DI2
DI3
DI4
DI5
DI6
DI7
DI8
DI9
DI10
DI11
DI12
High-Z
(1)
(2)
(4)
(3)
(5)
(6)
High-Z
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| R8A66150SP#T1 | 制造商:Renesas 功能描述:0 |
| R8A66151SP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:24-BIT I/O EXPANDER |
| R8A66151SP#T1 | 制造商:Renesas 功能描述:0 |
| R8A66152SP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:12-BIT I/O EXPANDER WITH LED DRIVE FUNCTION |
| R8A66153FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:PROGRAMMABLE BUFFERED I/O EXPANDER |
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