XR16L788 Exar Corporation, XR16L788 Datasheet - Page 34

• Manufacturer Part Number: XR16L788
• Description: High-performance 3.3V Octal Uart
• Manufacturer: Exar Corporation

AC ELECTRICAL CHARACTERISTICS
TA=0
S
T
T
T
T
T
T
T
C1,
T
T
T
T
T
T
T
T
YMBOL
T
T
T
T
T
T
T
T
T
T
T
T
WDS
WDH
RWS
WDS
WDH
RWH
OSC
RDV
RDH
ADS
ADH
RDA
RDH
CSD
ECK
CSL
RST
17D
18D
19D
WR
AH
RD
AS
CS
DY
T
o
C2
to 70
Clock Pulse Period
Oscillator Frequency
External Clock Frequency
Address Setup (16 Mode)
Address Hold (16 Mode)
Chip Select Width (16 Mode)
Delay between CS# Active Cycles (16 Mode)
Read Strobe Width (16 Mode)
Write Strobe Width (16 Mode)
Read Data Valid (16 Mode)
Write Data Setup (16 Mode)
Read Data Hold (16 Mode)
Write Data Hold (16 Mode)
Address Setup (68 Mode)
Address Hold (68 Mode)
R/W# Setup to CS# (68 Mode)
Read Data Access (68 mode)
Read Data Hold (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 Modem Output
Delay to set Interrupt from Modem Input
Delay to reset Interrupt from IOR#
Reset Pulse
o
C (-40
o
to +85
o
P
C for industrial grade package), Vcc-3.3V and 5V +/-10% unless specified.
ARAMETER
34
3,3V
M
10
10
50
50
50
40
35
15
15
10
10
10
35
10
10
10
50
50
40
5
IN
3.3V
M
16
33
15
15
50
50
50
AX
M
XR16L788 OCTAL UART
5V
10
50
50
50
30
25
10
10
10
10
25
10
10
10
40
40
40
8
5
5
IN
M
5V
24
50
10
10
50
35
35
AX
U
MHz
MHz
NITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
REV. 1.1.4
N
OTES