Datasheet

TL16C750
ASYNCHRONOUS COMMUNICATIONS ELEMENT
WITH 64-BYTE FIFOs AND AUTOFLOW CONTROL
SLLS191C – JANUARY 1995 – REVISED DECEMBER 1997
12
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
modem control switching characteristics over recommended ranges of supply voltage and
operating free-air temperature, C
L
= 75 pF
PARAMETER ALT. SYMBOL FIGURE MIN MAX UNIT
t
d22
Delay time, WR MCR to output t
MDO
15 60 ns
t
d23
Delay time, modem interrupt to set interrupt t
SIM
15 35 ns
t
d24
Delay time, RD MSR to reset interrupt t
RIM
15 45 ns
t
d25
Delay time, CTS low to SOUT↓ 16 24
baudout
cycles
t
d26
Delay time, receiver threshold byte to RTS↑ 17 2
baudout
cycles
t
d27
Delay time, read of last byte in receive FIFO to RTS↓ 17 3
baudout
cycles
PARAMETER MEASUREMENT INFORMATION
BAUDOUT
(1/1)
XIN
BAUDOUT
(1/2)
BAUDOUT
(1/3)
BAUDOUT
(1/N)
(N > 3)
2 XIN Cycles
(N–2) XIN Cycles
t
w3
t
w4
t
d1
t
d2
t
d1
t
d2
N
t
w1
t
w2
Figure 4. Baud Generator Timing Waveforms