XR17C152 Datasheet, PDF (51/62 Pages) Exar Corporation – 5V PCI BUS DUAL UART

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REV. 1.2.0
XR17C152
5V PCI BUS DUAL UART
AC ELECTRICAL CHARACTERISTICS FOR 5V SIGNALING
TA=0^o to 70^oC (-40^o to +85^oC for industrial grade package). VCC = 4.5 - 5.5V unless otherwise specified.
SYMBOL
XTAL1
PARAMETER
Crystal Oscillator
ECLK
External Clock
MIN
MAX
UNITS
NOTES
24
MHz
UART Clock
50
MHz
I_OH(AC)
Switching Current High
-44
I_OL(AC)
Switching Current Low
95
I_CL
Low Clamp Current
-25+(Vin+1)/0.015
Slew_R
Output Rise Slew Rate
1
4
Slew_F
Output Fall Slew Rate
1
4
T_CYC
CLK Cycle Time
30
∞
T_HI
CLK High Time
11
T_LO
CLK Low Time
11
CLK Slew Rate
1
4
T_VAL
CLK to Signal Valid Delay
2
11
T_ON
Float to Active Delay
2
T_OFF
Active to Float Delay
28
T_SETUP
Input Setup Time to CLK -
7
bused signals
T_HOLD
Input Hold Time from CLK
0
T_PRST
RST# Active Time After
1
Power Stable
T_CRST#
RST# Active Time After
100
CLK Stable
RST# Slew Rate
50
mA
mA
mA
V/ns
V/ns
ns
ns
ns
V/ns
ns
ns
ns
ns
0<Vout<1.4
Vout/0.023
-3<Vin<-1
0.2Vcc-0.6Vcc_load
0.6Vcc-0.2Vcc_load
PCI Bus Clock, CLK
(33.34 MHz max)
ns
ms
us
mV/ns
51