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參數(shù)資料
| 型號(hào)： | SP516CF |
| 英文描述： | 20Mbps 7 Driver, 7 Receiver Multiprotocol Serial Transceiver with Termination Disable |
| 中文描述： | 20Mbps的7驅(qū)動(dòng)器，7與終端接收多協(xié)議串行收發(fā)器禁用 |
| 文件頁數(shù)： | 17/21頁 |
| 文件大?。?/td> | 499K |
| 代理商： | SP516CF |
17
SP516DS/02 SP516 20Mbps 7 Driver, 7 Reciver Multiprotocol Serial Transceiver
Copyright 2000 Sipex Corporation
Pin 7 — SCTEN — Enables SCT receiver;
active high; TTL input.
Pin 8 — TERM_OFF — Active low control pin
disconnects the receiver input termination
circuitry. Logic high input connects the V.35
and V.11 receiver input termination circuitry.
Pins 12–9 — DEC
– DEC
— Transmitter and
receiver decode register; configures transmitter
and receiver modes; TTL inputs.
Pin 18 — RLEN — Enables RL driver; active
low; TTL input.
Pin 23 — STEN — Enables ST driver; active
low; TTL input.
POWER SUPPLIES
Pins 25, 33, 41, 48, 55, 62, 73, 74 — V
CC
— +5V
input.
Pins 29, 34, 43, 46, 50, 53, 57, 60, 64, 72, 75 —
GND — Ground.
Pin 27 — V
+10V Charge Pump Capacitor —
Connects from V
to V
CC
. Suggested capaci-
tor size is 22
μ
F, 16V.
Pin 32 — V
–10V Charge Pump Capacitor —
Connects from ground to V
SS
. Suggested ca-
pacitor size is 22
μ
F, 16V.
Pins 26 and 30 — C
Capacitor — Connects from C
Suggested capacitor size is 22
μ
F, 16V.
+
and C
–
— Charge Pump
+
to C
1
–
.
Pins 28 and 31 — C
Capacitor — Connects from C
Suggested capacitor size is 22
μ
F, 16V.
+
and C
–
— Charge Pump
+
to C
2
–
.
Pin 45 — RL(b) — Remote Loopback; analog
output, non-inverted; sourced from RL.
Pin 47 — RL(a) — Remote Loopback; analog
output inverted; sourced from RL.
Pin 49— LL(b) — Local Loopback; analog
output, non-inverted; sourced from LL.
Pin 51 — LL(a) — Local Loopback; analog
output, inverted; sourced from LL.
Pin 52 — RS(b) — Ready To Send; analog
output, non-inverted; sourced from RTS.
Pin 54 — RS(a) — Ready To Send; analog
output, inverted; sourced from RTS.
Pin 56 — TR(b) — Terminal Ready; analog
output, non-inverted; sourced from DTR.
Pin 58 — TR(a) — Terminal Ready; analog
output, inverted; sourced from DTR.
Pin 66 — CS(a)— Clear To Send; analog input,
inverted; source for CTS.
Pin 67 — CS(b)— Clear To Send; analog input,
non-inverted; source for CTS.
Pin 68 — DM(a)— Data Mode; analog input,
inverted; source for DSR.
Pin 69 — DM(b)— Data Mode; analog input,
non-inverted; source for DSR
Pin 78 — DSR— Data Set Ready; TTL output;
sourced from DM(a), DM(b) inputs.
Pin 80 — CTS— Clear To Send; TTL output;
sourced from CS(a) and CS(b) inputs.
CONTROL REGISTERS
Pin 2 — SDEN — Enables TxD driver, active
low; TTL input.
Pin 3 — TREN — Enables DTR driver, active
low; TTL input.
Pin 4 — RSEN — Enables RTS driver, active
low; TTL input.
Pin 5 — LLEN — Enables LL driver, active
low; TTL input.
Pin 6 — TTEN — Enables TT driver, active
low; TTL input.
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