XR16L580 Datasheet, PDF (36/47 Pages) Exar Corporation – SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE

XR16L580
SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
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REV. 1.2.0
AC ELECTRICAL CHARACTERISTICS
UNLESS OTHERWISE NOTED: TA=0^O TO 70^OC (-40^O TO +85^OC FOR INDUSTRIAL GRADE PACKAGE), VCC=2.25 - 5.5V,
50 PF LOAD WHERE APPLICABLE
SYMBOL
PARAMETER
-
OSC
CLK
T_AS
T_AH
T_CS
T_RD
T_DY
T_RDV
T_DD
T_WR
T_DY
T_DS
T_DH
T_ADS
T_ADH
T_RWS
T_RDA
T_RDH
T_WDS
T_WDH
T_RWH
T_CSL
T_CSD
T_WDO
T_MOD
T_RSI
T_SSI
Crystal Frequency
External Clock Frequency
External Clock Low/High Time
Address Setup Time (16 Mode)
Address Hold Time (16 Mode)
Chip Select Width (16 Mode)
IOR# Strobe Width (16 Mode)
Read Cycle Delay (16 Mode)
Data Access Time (16 Mode)
Data Disable Time (16 Mode)
IOW# Strobe Width (16 Mode)
Write Cycle Delay (16 Mode)
Data Setup Time (16 Mode)
Data Hold Time (16 Mode)
Address Setup (68 Mode)
Address Hold (68 Mode)
R/W# Setup to CS# (68 Mode)
Read Data Access (68 mode)
Read Data Disable Time (68 mode)
Write Data Setup (68 mode)
Write Data Hold (68 Mode)
CS# De-asserted to R/W# De-asserted (68
Mode)
CS# Width (68 Mode)
CS# Cycle Delay (68 Mode)
Delay From IOW# To Output
Delay To Set Interrupt From MODEM Input
Delay To Reset Interrupt From IOR#
Delay From Stop To Set Interrupt
LIMITS
2.5
MIN
MAX
LIMITS
3.3
MIN
MAX
LIMITS
5.0
MIN
MAX
UNIT
18
20
24 MHz
24
33
50 MHz
20
15
10
ns
5
5
10
ns
0
0
0
ns
100
50
30
ns
100
50
30
ns
100
50
30
ns
75
50
25 ns
0
30
0
20
0
20 ns
100
50
30
ns
100
50
30
ns
25
15
12
ns
3
3
5
ns
5
5
10
ns
0
0
0
ns
10
10
10
ns
75
50
25
ns
30
20
20 _ns
25
15
12
ns
3
3
5
ns
10
10
10
ns
100
50
100
50
30
ns
30
ns
150
75
50 ns
150
75
50 ns
150
75
50 ns
1
1
1 Bclk
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