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參數(shù)資料
| 型號： | R2043K |
| 廠商： | Ricoh Co., Ltd. |
| 英文描述： | 4-wire Serial Interface |
| 中文描述： | 4線串行接口 |
| 文件頁數(shù)： | 3/48頁 |
| 文件大?。?/td> | 458K |
| 代理商： | R2043K |
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R2043K/T
Q
PIN DESCRIPTION
Symbol
Item
CE
Chip enable
Input
12345
Rev.2.05 - 3 -
Description
The CE pin is used for interfacing with the CPU. Should be held high to
allow access to the CPU. Incorporates a pull-down resistor. Should be
held low or open when the CPU is powered off. Allows a maximum input
voltage of 5.5v regardless of supply voltage.
The SCLK pin is used to input clock pulses synchronizing the input and
output of data to and from the SI and SO pins. Allows a maximum input
voltage of 5.5v regardless of supply voltage.
The SI pin is used to input data intended for writing in synchronization with
the SCLK pin. CMOS input. Allows a maximum input voltage of 5.5v
regardless of supply voltage.
The SO pin is used to output data intended for reading in synchronization
with the SCLK pin. CMOS output. If the CE pin is low, the SO pin goes to a
high impedance state.
The /INTR pin is used to output alarm interrupt (Alarm_W) and alarm
interrupt (Alarm_D) and output periodic interrupt signals to the CPU signals.
Disabled at power-on from 0V. N-channel open drain output. Allows a
maximum pull-up voltage of 5.5v regardless of supply voltage.
The 32KOUT pin is used to output 32.768-kHz clock pulses. The pin is
N-channel open drain output. However it cannot be pulled up over
VDD+0.3v.
The OSCIN and OSCOUT pins are used to connect the 32.768-kHz crystal
oscillator (with all other oscillation circuit components built into the
R2043K/T).
The VDD pin is connected to the power supply. The VSS pin is grounded.
SCLK
Serial Clock
Input
SI
Serial Input
SO
Serial Output
/INTR
Interrupt
Output
32KOUT
32kHz Clock
Output
OSCIN
OSCOUT
Oscillation
Circuit
Input / Output
Positive/Negative
Power
Supply Input
VDD
VSS
(VSS)
Please connect to ground line, or do not connect any lines.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| R2043K-E2 | 4-wire Serial Interface |
| R3111Q181B | LOW VOLTAGE DETECTOR |
| R3111Q191A | LOW VOLTAGE DETECTOR |
| R3111Q191B | LOW VOLTAGE DETECTOR |
| R3111Q191C | LOW VOLTAGE DETECTOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| R2043K-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:4-wire Serial Interface |
| R2043T | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:4-wire Serial Interface |
| R2043T-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:4-wire Serial Interface |
| R20440 | 制造商:Microsemi Corporation 功能描述:STD RECOVERY RECTFR 400V 12A 2PIN DO-4 - Bulk |
| R2045D | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:4-wire Serial Interface Real Time Clock Module |
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