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COM8136T

SMSC
Part Number COM8136T
Manufacturer SMSC
Description Dual Baud Rate Generator
Published Dec 9, 2019
Detailed Description STANDARD MICROSYSTEMS CORPORATIO COM 8136 COM 8136T Dual Baud Rate Generator Programmable Divider FEATURES o On chip ...
Datasheet PDF File COM8136T PDF File

COM8136T
COM8136T

Overview
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.
Re Re Ro STR DIVIDER DIVIDER +2 fr fx/4 +2 fR ,l.
,l.
+5v GND 185 General Description The Standard Microsystem's COM 8136 is an enhanced version of the COM 5036 Dual Baud Rate Generator.
It is fabricated using SMC's patented COPLAMOS® and CLASp® technologies and employs depletion mode loads, allowing operation from a single + 5v supply.
The standard COM 8136 is specifically dedicated to generating the full spectrum of 16 asynchronousl synchronous data communication frequencies for 16X UART/USRT devices.
A large number of the frequencies available are also useful for 1X and 32X ASTRO/USYNRT devices.
The COM 8136 features an internal crystal oscillator which may be used to provide the master reference frequency.
Alternatively, an external reference may be supplied by applying complementary TTL level signals to pins 1 and 18.
Parts suitable for use only with an external TTL reference are marked COM 8136T.
TTL outputs used to drive the COM 8136 or COM 8136T XTAL/EXT inputs should not be used to drive other TTL inputs, as noise immunity may be compromised due to excessive loading.
The output of the oscillator/buffer is applied to the dividers for generation of the output frequenc...


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