XR19L212 Datasheet, PDF (42/52 Pages) Exar Corporation – TWO CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER

XR19L212
TWO CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
REV. 1.0.0
AC ELECTRICAL CHARACTERISTICS
UNLESS OTHERWISE NOTED: TA=-40^O TO +85^OC, VCC=3.3 - 5.5V, 70 PF LOAD WHERE APPLICABLE
SYMBOL
PARAMETER
LIMITS
3.3
MIN
MAX
LIMITS
5.0
MIN
MAX
UNIT
-
Crystal Frequency
16
16 MHz
OSC External Clock Frequency
16
16 MHz
CLK External Clock Low/High Time
30
30
ns
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
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
0
0
ns
0
0
ns
65
65
ns
65
65
ns
65
65
ns
60
60 ns
0
15
0
15 ns
65
65
ns
65
65
ns
10
10
ns
5
5
ns
0
0
ns
0
0
ns
0
0
ns
60
60 ns
0
15
0
15 ns
10
10
ns
5
5
ns
5
5
ns
65
65
ns
65
65
ns
50
50 ns
50
50 ns
50
50 ns
1
1 Bclk
50
50 ns
42