Inputs, I/O,
Registered Feedback,
Synchronous Preset
Clock
Asynchronous
Reset
Registered
Outputs
Combinatorial
Outputs
Notes
1.
Minimum DC input is -0.5V, however inputs may
undershoot to -2.0V for periods less than 20ns.
2.
VI and VO are not specified for program/verify
operation.
3.
Test points for Clock and VCC in tR,tF are referenced at
10% and 90% levels.
4.
I/O pins are 0V and 3V.
5.
“Input” refers to an Input pin signal.
6.
tOE is measured from input transition to VREF
± 0.1V,
tOD is measured from input transition to VOH -0.1Vor
VOL +0.1V; VREF =VL see test loads in Section 6 of the
Data Book.
7.
Capacitances are tested on a sample basis.
8.
Test conditions assume: signal transition times of 3ns
or less from the 10% and 90% points, timing reference
levels of 1.5V (unless otherwise specified).
9.
Test one output at a time for a duration of less than 1
sec.
10.
ICC for a typical application: This parameter is tested
with the device programmed as an 8-bit Counter.
11.
PEEL Device test loads are specified in Section 6 of
the Data Book.
12.
Parameters are not 100% tested. Specifications are
based on initial characterization and are tested after
any design or process modification which may affect
operational frequency.
Switching Waveforms
A.C. Electrical Characteristics
Over the Operating Range 8, 11
Symbol Parameter
-15
-25
Unit
Min
Max
Min
Max
tPD
Input
5 to non-registered output
3
15
3
25
ns
tOE
Input
5 to output enable6
315
3
20
ns
tOD
Input
5 to output disable6
315
3
20
ns
tCO1
Clock to output
2
10
2
12
ns
tCO2
Clock to comb. output delay via
internal registered feedback
25
35
ns
tCF
Clock to Feedback
8
10
ns
tSC
Input
5 or feedback setup to clock
12
15
ns
tHC
Input
5 hold after clock
0
0
ns
tCL,tCH
Clock low time, clock high time
8
812
ns
tCP
Minclock periodExt (tSC +tCO1)22
27
ns
fMAX1
Internal Feedback (1/tSC+tCF)
12
50
40
MHz
fMAX2
External Feedback (1/tCP)
12
45.5
37
MHz
fMAX3
No Feedback (1/tCL+tCH)
12
62.5
41.6
MHz
tAW
Asynchronous Reset pulse width
15
25
ns
tAP
Input
5 to Asynchronous Reset
15
25
ns
tAR
Asynch. Reset recovery time
15
25
ns
tRESET
Power-on reset time for
registers in clear state
55
µs
PEEL™ 16V8
3- 15