XR16M752_09 Datasheet, PDF (41/54 Pages) Exar Corporation – HIGH PERFORMANCE DUART WITH 64-BYTE FIFO

REV. 1.1.1
XR16M752/XR68M752
HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
AC ELECTRICAL CHARACTERISTICS
Unless otherwise noted: TA=-40^o to +85^oC, Vcc=1.62 - 3.63V, 70 pF load where applicable
SYMBOL
PARAMETER
XTAL1
ECLK
T_ECLK
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
UART Crystal Oscillator
External Clock
External Clock Time Period
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 (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
1.8V ± 10%
MIN
MAX
LIMITS
2.5V ± 10%
MIN
MAX
LIMITS
3.3V ± 10%
MIN
MAX
24
24
24
32
50
64
15
10
7
UNIT
MHz
MHz
ns
5
5
5
ns
0
0
0
ns
60
30
30
ns
60
30
30
ns
60
30
30
ns
55
25
25
ns
0
20
0
20
0
10
ns
60
30
30
ns
60
30
30
ns
15
10
10
ns
5
5
5
ns
5
5
5
ns
0
0
0
ns
5
5
5
ns
55
25
25
ns
20
20
10
ns
15
10
10
ns
5
5
5
ns
5
5
5
ns
60
30
30
ns
60
30
30
ns
50
50
50
ns
50
50
50
ns
50
50
50
ns
1
1
1
Bclk
41