ST16C654D Exar Corporation, ST16C654D Datasheet - Page 39

• Manufacturer Part Number: ST16C654D
• Description: St16c654d -quad Uart With 64-byte Fifo And Infrared Irda Encoder/decoder
• Manufacturer: Exar Corporation

xr
REV. 5.0.2
AC ELECTRICAL CHARACTERISTICS
TA=0
F
S
IGURE
YMBOL
T
T
T
T
T
T
T
Bclk
T
T
T
SSR
SRT
RST
WRI
RRI
N
SSI
INT
RR
WT
SI
O
EXTERNAL
TO
CLOCK
14. C
70
Delay From Stop To Set Interrupt
Delay From IOR# To Reset Interrupt
Delay From Start To Interrupt
Delay From Initial INT Reset To Transmit Start
Delay From IOW# To Reset Interrupt
Delay From Stop To Set RXRDY#
Delay From IOR# To Reset RXRDY#
Delay From IOW# To Set TXRDY#
Delay From Center of Start To Reset TXRDY#
Reset Pulse Width
Baud Rate Divisor
Baud Clock
O
C (-40
LOCK
T
O
IMING
TO
+85
P
O
ARAMETER
C
FOR INDUSTRIAL GRADE PACKAGE
CLK
OSC
CLK
39
2.97V TO 5.5V QUAD UART WITH 64-BYTE FIFO
M
40
IN
8
1
L
IMITS
3.3
), V
16X of data rate
2
200
100
175
175
175
CC IS
M
24
16
1
1
8
AX
-1
2.97
M
IN
40
8
1
TO
L
IMITS
5.0
5.5V
2
200
100
175
175
175
24
16
M
1
1
8
-1
AX
U
Bclk
Bclk
Bclk
Bclk
Hz
ns
ns
ns
ns
ns
ns
NIT
ST16C654/654D
-
100 pF load
C
ONDITIONS