XR17D158 Exar Corporation, XR17D158 Datasheet - Page 55

• Manufacturer Part Number: XR17D158
• Description: Eight-channel Pci-bus Uart
• Manufacturer: Exar Corporation

AC ELECTRICAL CHARACTERISTICS FOR 5V SIGNALING
TA=0
XR17D158
UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
REV. P1.0.0
CLK
XTAL1
I
I
Slew
Slew
T
T
T
T
T
T
T
T
T
T
OH(AC)
OL(AC)
ON
OFF
CYC
HI
LO
VAL
SETUP
HOLD
PRST
CRST#
S
YMBOL
R
F
o
to 70
o
C (-40
PCI Bus Clock
UART Crystal Oscillator
UART External Clock
Switching Current High
Switching Current Low
Output Rise Slew Rate
Output Fall Slew Rate
CLK Cycle Time
CLK High Time
CLK Low Time
CLK Slew Rate
CLK to Signal Valid Delay
Float to Active Delay
Active to Float Delay
Input Setup Time to CLK -
bused signals
Input Hold Time from CLK
RST# Active Time After
Power Stable
RST# Active Time After
CLK Stable
RST# Slew Rate
o
P
to +85
ARAMETER
o
C for industrial grade package), Vcc = 5.0V ± 5% unless specified.
M
100
-44
95
30
11
11
50
1
1
1
2
2
7
0
1
IN
55
(infinite)
M
33
24
50
11
28
4
4
4
AX
mV/ns
U
MHz
MHz
MHz
V/ns
V/ns
V/ns
mA
mA
ms
NITS
ns
ns
ns
ns
ns
ns
ns
ns
us
PRELIMINARY
0<Vout<1.4
Vout/0.023
0.2Vcc-0.6Vcc
0.6Vcc-0.2Vcc
áç
áç
áç
áç
N
OTES
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