SN75C185_16 Datasheet, PDF (1/18 Pages) Texas Instruments – LOW-POWER MULTIPLE DRIVERS AND RECEIVERS

SN75C185
LOW-POWER MULTIPLE DRIVERS AND RECEIVERS
D Meets or Exceeds the Requirements of
TIA/EIA-232-F and ITU Recommendation
V.28
D Single Chip With Easy Interface Between
UART and Serial-Port Connector
D Less Than 9-mW Power Consumption
D Wide Driver Supply Voltage . . . 4.5 V to
13.2 V
D Driver Output Slew Rate Limited to
30 V/µs Max
D Receiver Input Hysteresis . . . 1100 mV Typ
D Push-Pull Receiver Outputs
D On-Chip Receiver 1-µs Noise Filter
D Functionally Interchangeable With Texas
Instruments SN75185
D Operates Up to 120 kbit/s Over a 3-Meter
Cable (See Application Information for
Conditions)
SLLS065F – AUGUST 1989 – REVISED JANUARY 2000
DW OR N PACKAGE
(TOP VIEW)
V_{DD 1}
RA1 ₂
RA2 ₃
RA3 ₄
DY1 ₅
DY2 ₆
RA4 7
DY3 8
RA5 9
V_SS 10
20 ^V_CC
19 ^RY1
18 ^RY2
17 ^RY3
16 ^DA1
15 ^DA2
14 RY4
13 DA3
12 RY5
11 GND
description
The SN75C185 is a low-power BiMOS device containing three independent drivers and five receivers that are
used to interface data terminal equipment (DTE) with data circuit-terminating equipment (DCE). Typically, the
SN75C185 replaces one SN75188 and two SN75189 devices. This device conforms to TIA/EIA-232-F. The
drivers and receivers of the SN75C185 are similar to those of the SN75C188 and SN75C189A, respectively.
The drivers have a controlled output slew rate that is limited to a maximum of 30 V/µs, and the receivers have
filters that reject input noise pulses that are shorter than 1 µs. Both these features eliminate the need for external
components.
The SN75C185 uses the low-power BiMOS technology. In most applications, the receivers contained in this
device interface to single inputs of peripheral devices such as ACEs, UARTS, or microprocessors. By using
sampling, such peripheral devices usually are insensitive to the transition times of the input signals. If this is not
the case, or for other uses, it is recommended that the SN75C185 receiver outputs be buffered by single Schmitt
input gates or single gates of the HCMOS, ALS, or 74F logic families.
The SN75C185 is characterized for operation from 0°C to 70°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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