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LS7061C Datasheet(PDF) 3 Page - LSI Computer Systems

Part # LS7061C
Description  32 BIT BINARY UP COUNTER WITH BYTE MULTIPLEXED THREE-STATE OUTPUTS
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Manufacturer  LSI [LSI Computer Systems]
Direct Link  http://www.lsicsi.com
Logo LSI - LSI Computer Systems

LS7061C Datasheet(HTML) 3 Page - LSI Computer Systems

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DYNAMIC ELECTRICAL CHARACTERISTICS:
(VDD = +5V ± 5%, VSS = 0V, TA = 0˚C to +70˚C unless otherwise noted.)
PARAMETER
SYMBOL
MIN
MAX
UNIT
CONDITIONS
Count Frequency
fc
DC
50
MHz
-
(All Count inputs)
Count Pulse Width
tCPW
10
-
ns
Measured at 50% point,
(All Count Inputs)
Max tr, tf = 1ns
Count Ripple Time
tCR
-
20
ns
Transition from 32 ones to 32 zeros
from negative edge of count pulse
Reset Pulse Width
tRPW
20
-
ns
Measured at 50% point
(All Counter Stages
Max tr, tf = 10ns
Fully Reset)
RESET Removal Time
tRR
-
10
ns
Measured from RESET signal at VIH
(Reset Removed From
All Counter Stages)
SCAN Frequency
fSC
-
10
MHz
SCAN Pulse Width
tSCPW
50
-
ns
Measured at 50% point
Max tr, tf = 10ns
SCAN RESET/LOAD
tRSCPW
10
-
ns
Measured at 50% point
Pulse Width
Max tr, tf = 5ns
(All latches loaded and
Scan Counter Reset to
Least Significant Byte)
SCAN RESET/LOAD
tRSCR
-
10
ns
Measured from
Removal Time
SCAN RESET/LOAD at VIH
(Reset Removed from
Scan Counter; Load
Command Removed
From Latches)
Output Disable
tDOD
-
5
ns
Transition to Output High
Delay Time
Impedance State Measured
(B0 - B7)
From Scan at VIL or
ENABLE at VIH
Output ENABLE
tDOE
-
5
ns
Transition to Valid On State
Delay Time
Measured from Scan at VIH
(B0 - B7)
and ENABLE at VIL; Delay to
Valid Data Levels for COL = 10pF
and one TTL Load or Valid Data
Currents for High Capacitance Loads
Output Delay Time
tDCE
-
10
ns
Negative Transition from Scan at VIL
CASCADE ENABLE
and ST5 of Scan Counter or Positive
Transition From SCAN RESET/LOAD at
VIL to Valid Data Levels for COL = 12pF
and one TTL Load
SYMBOL
MIN
MAX
UNIT
CONDITIONS
INPUT CURRENT
*SCAN RESET/LOAD
IIH
-
-3.5
µA
VDD = Max, VIH = +3.5V
IIL
-
-5
µA
VDD = Max, VIL = 0V
**All Count inputs
IIH
-
5
µA
VDD = Max, VIH = +3.5V
IIL
-
1
µA
VDD = Max, VIL = 0.35V
*Input has internal pull-up resistor to VDD
** Inputs have internal pull-down resistor to VSS
7060C/61C-121901-3


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