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ST16C650A
2.90V TO 5.5V UART WITH 32-BYTE FIFO
REV. 5.0.0
AC ELECTRICAL CHARACTERISTICS
TA=0O TO 70OC (-40O TO +85OC FOR INDUSTRIAL GRADE PACKAGE), VCC IS 2.90V TO 5.5V, 70 PF LOAD
WHERE APPLICABLE
LIMITS
3.3V
LIMITS
5.0V
SYMBOL
PARAMETER
UNIT
MIN
MAX MIN
MAX
TDS2
TDH2
TAS3
TRD3
TRD4
TWR2
TWR3
TDS3
TDH3
TWDO
TMOD
TRSI
TSSI
TRRI
TSI
Data Setup Time (AS# used)
20
10
ns
ns
Data Hold Time (AS# used)
5
5
Address Setup Time (PC Mode)
Delay from AEN# to IOR#
5
5
ns
10
10
10
10
20
5
10
10
10
10
10
5
ns
Delay from IOR# to AEN#
ns
Delay from AEN# to IOW#
ns
Delay from IOW# to AEN#
ns
Data Setup Time (PC Mode)
Data Hold Time (PC Mode)
ns
ns
Delay From IOW# To Output
Delay To Set Interrupt From MODEM Input
Delay To Reset Interrupt From IOR#
Delay From Stop To Set Interrupt
Delay From IOR# To Reset Interrupt
Delay From Stop 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
50
40
40
1
40
35
35
1
ns
ns
ns
Bclk
ns
45
45
24
45
1
40
40
24
40
1
ns
TINT
TWRI
TSSR
TRR
8
8
Bclk
ns
Bclk
ns
45
45
8
40
40
8
TWT
ns
TSRT
TRST
N
Bclk
ns
40
1
40
1
216-1
216-1
Baud Rate Divisor
-
Bclk
Baud Clock
16X of data rate
Hz
41
EXAR [ EXAR CORPORATION ]
