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Semiconductor
MSM82C51A-2RS/GS/JS
Serial Interface Part
Notes: 1. AC characteristics are measured at 150 pF capacity load as an output load based on 0.8 V at
low level and 2.2 V at high level for output and 1.5 V for input.
2. Addresses are CS and C/D.
3. fTX or fRX 1/(30 Tcy) 1 Baud
fTX or fRX 1/(5 Tcy)
16, 64 Baud
4. This recovery time is mode Initialization only. Recovery time between command writes for
Asynchronous Mode is 8 tCY and for Synchronous Mode is 18 tCY.
Write Data is allowed only when TXRDY = 1.
5. This recovery time is Status read only.
Read Data is allowed only when RXRDY = 1.
6. Status update can have a maximum delay of 28 clock periods from event affecting the status.
Max.
Main Clock Period
tCY
—
ns
Parameter
Unit
Symbol
Min.
160
Note 3
Remarks
Clock Low Tme
tf
—
ns
Clock High Time
tf
tCY –50
ns
50
70
—
Clock Rise/Fall Time
tr, tf
20
ns
—
TXD Delay from Falling Edge of TXC
tDTX
1
mS
—
Transmitter Clock Frequency
fTX
64
kHz
fTX
615
kHz
DC
Note 3
fTX
615
kHz
DC
1 Baud
16 Baud
64 Baud
Transmitter Clock Low Time
tTPW
—
tCY
1 Baud
—
tTPW
—
tCY
Transmitter Clock High Time
tTPD
—
13
2
15
tCY
16 , 64 Baud
1 Baud
—
tTPD
—
tCY
3
16 , 64 Baud
—
Receiver Clock Frequency
fRX
64
DC
kHz
1 Baud
fRX
615
kHz
fRX
615
kHz
DC
16 Baud
64 Baud
Note 3
Receiver Clock Low Time
tRPW
—
tCY
13
—
tRPW
—
tCY
2
1 Baud
16 , 64 Baud
—
Receiver Clock High Time
tRPD
—
tCY
tRPD
—
tCY
15
3
1 Baud
16 , 64 Baud
—
Time from the Center of Last Bit to the Rise of
TXRDY
tTXRDY
8
tCY
—
Time from the Leading Edge of WR to the Fall
of TXRDY
tTXRDY CLEAR
400
ns
—
Time From the Center of Last Bit to the Rise of RXRDY
tRXRDY
26
tCY
—
Time from the Leading Edge of RD to the Fall
of RXRDY
tRXRDY CLEAR
400
ns
—
Internal SYNDET Delay Time from Rising Edge of RXC
tIS
26
tCY
—
MODEM Control Signal Delay Time from Rising Edge
of WR
tWC
—
tCY
8
—
MODEM Control Signal Setup Time for Falling Edge
of RD
tCR
—
tCY
20
—
RXD Setup Time for Rising Edge of RXC (1X Baud)
tRXDS
—
tCY
11
—
RXD Hold Time for Falling Edge of RXC (1X Baud)
tRXDH
—
tCY
17
—
SYNDET Setup Time for RXC
tES
—
tCY
18
—
TXE Delay Time from the Center of Last Bit
tTXEMPTY
—
tCY
20
—
(VCC = 4.5 to 5.5 V, Ta = –40 to 85°C)
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PDF描述 |
|---|---|
| MSM82C51A-2GS-K | 1 CHANNEL(S), 64K bps, SERIAL COMM CONTROLLER, PDSO32 |
| MSM82C53-2GS-K | 3 TIMER(S), PROGRAMMABLE TIMER, PDSO32 |
| MSM82C53-2RS | 3 TIMER(S), PROGRAMMABLE TIMER, PDIP24 |
| MSM82C53-2GS | 3 TIMER(S), PROGRAMMABLE TIMER, PDSO32 |
| MSM82C53-2JS | 3 TIMER(S), PROGRAMMABLE TIMER, PQCC28 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSM82C51A-2RS | 制造商:ROHM Semiconductor 功能描述: 制造商:ROHM Semiconductor 功能描述:USART,Programmable multifunction 制造商:ROHM Semiconductor 功能描述:USART, programmable multi-function communication interface |
| MSM82C53-2 GS-K | 制造商:ROHM Semiconductor 功能描述: |
| MSM82C53-2GS | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:CMOS PROGRAMMABLE INTERVAL TIMER |
| MSM82C53-2JS | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:CMOS PROGRAMMABLE INTERVAL TIMER |
| MSM82C53-2RS | 制造商:ROHM Semiconductor 功能描述: |
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