Click to expand full text
STANDARD MICROSYSTEMS CORPORATIO
COM 8136 COM 8136T
Dual Baud Rate Generator
Programmable Divider
FEATURES
o On chip crystal oscillator or external frequency input
o Single +5v power supply o Choice of 2 x 16 output frequencies
o 16 asynchronousl synchronous baud rates
o Direct UART/USRTIASTRO/USYNRT compatibility
o Full duplex communication capability o High frequency reference output
ORe-programmable ROM via CLASp® technology allows generation of other frequencies
o TTL, MaS compatibility o Compatible with COM 5036
PIN CONFIGURATION
XTALlEXT1 1 l .J
+5v 2 ( fR 3 (
RA 4 ( Rs 5 ( Rc 6 [
RD 7 [ STR 8 [
NC 91
18 XTALI EXT2 17 fr 16 TA 15 Ts 14 Tc 13 TD 12 STT 11 GND 10 fx/4
BLOCK DIAGRAM
STT
T. Te Te To
REPROGRAM MABLE FREQUENCY SELECT
I
XTALlEXTl
XTAL
~ CLOCK BUFFER
XTAL'EXT2
R.
COM8136 Datasheet
