ST16C1551 View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
'ST16C1551' PDF : 37 Pages View PDF
ST16C1550/51
2.97V TO 5.5V UART WITH 16-BYTE FIFO
áç
REV. 4.2.0
AC ELECTRICAL CHARACTERISTICS
TA=0O TO 70OC (-40O TO +85OC FOR INDUSTRIAL GRADE PACKAGE), VCC IS 2.97V TO 5.5V
SYMBOL
PARAMETER
LIMITS
3.3V
MIN
MAX
LIMITS
5.0V
MIN
MAX
UNIT
CONDITIONS
CLK Clock Pulse Duration
63
21
ns
OSC Oscillator/External Clock Frequency
8
24 MHz
TAS
TAH
TCS
TRD
TDY
TRDV
TDD
TWR
TDS
TDH
TWDO
TMOD
TRSI
TSSI
TRRI
TSI
TINT
TSSR
TRR
TWT
TSRT
TRST
N
Address Setup Time
Address Hold Time
Chip Select Width
IOR# Strobe Width
Read/Write Cycle Delay
Data Access Time
Data Disable Time
IOW# Strobe Width
Data Setup Time
Data Hold Time
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 Stop To Reset RXRDY
Delay From IOR# To Set RXRDY
Delay From IOW# To Reset TXRDY
Delay From Center of Start To Set TXRDY
Reset Pulse Width
Baud Rate Divisor
5
0
ns
10
5
ns
50
40
ns
35
25
ns
40
30
ns
35
25
ns
0
25
0
15
ns
40
25
ns
20
15
ns
5
5
ns
50
40
ns 100 pF load
40
35
ns 100 pF load
40
35
ns 100 pF load
1
1
Bclk
45
40
ns 100 pF load
45
40
ns
8
24
8
24 Bclk
1
1
Bclk
45
40
ns
45
40
ns
8
8
Bclk
40
40
ns
1
216-1
1
216-1
-
Bclk Baud Clock
16X of data rate
Hz
26
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