XR16L580_07 Datasheet, PDF (39/52 Pages) Exar Corporation – SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE

REV. 1.4.1
XR16L580
SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
AC ELECTRICAL CHARACTERISTICS
UNLESS OTHERWISE NOTED: TA=-40^O TO +85^OC, VCC=2.97 - 5.5V, 70 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
T_RRI
T_SI
T_INT
T_WRI
T_RST
N
Bclk
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
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
Reset Pulse Width
Baud Rate Divisor
Baud Clock
LIMITS
3.3
MIN
MAX
20
LIMITS
5.0
MIN
MAX
UNIT
24 MHz
33
50 MHz
15
10
ns
5
10
ns
0
0
ns
50
30
ns
50
30
ns
50
30
ns
50
25 ns
0
20
0
20 ns
50
30
ns
50
30
ns
15
12
ns
3
5
ns
5
10
ns
0
0
ns
10
10
ns
50
25
ns
20
20 _ns
15
12
ns
3
5
ns
10
10
ns
50
30
ns
50
30
ns
75
50 ns
75
50 ns
75
50 ns
1
1 Bclk
75
50 ns
75
50 ns
8
24
8
24 Bclk
75
50 ns
40
40
ns
1
2¹⁶-1
1
2¹⁶-1 ^-
16X of data rate
Hz
39