CY7C1339
AC Test Loads and Waveforms
R=317
Ω
3.3V
[10]
OUTPUT
ALL INPUT PULSES
90%
OUTPUT
2.5V
GND
90%
10%
=50
Z
0
Ω
10%
2.5 ns
R =50
Ω
L
5 pF
R=351
Ω
2.5ns
≤
≤
V = 1.5V
L
INCLUDING
JIG AND
SCOPE
(c)
(a)
(b)
[11,12,13]
Switching Characteristics Over the Operating Range
-166
-133
-100
Parameter
Description
Clock Cycle Time
Min.
6.0
1.7
1.7
2.0
0.5
Max.
Min.
7.5
1.9
1.9
2.5
0.5
Max.
Min.
Max.
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
10
3.5
3.5
2.5
0.5
CYC
CH
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Clock HIGH
Clock LOW
CL
Address Set-Up Before CLK Rise
Address Hold After CLK Rise
Data Output Valid After CLK Rise
Data Output Hold After CLK Rise
ADSP, ADSC Set-Up Before CLK Rise
ADSP, ADSC Hold After CLK Rise
BWE, GW, BW[3:0] Set-Up Before CLK Rise
BWE, GW, BW[3:0] Hold After CLK Rise
ADV Set-Up Before CLK Rise
ADV Hold After CLK Rise
AS
AH
3.5
4.0
5.5
CO
1.5
2.0
0.5
2.0
0.5
2.0
0.5
2.0
0.5
2.0
0.5
2.0
2.5
0.5
2.5
0.5
2.5
0.5
2.5
0.5
2.5
0.5
2.0
2.5
0.5
2.5
0.5
2.5
0.5
2.5
0.5
2.5
0.5
DOH
ADS
ADH
WES
WEH
ADVS
ADVH
DS
Data Input Set-Up Before CLK Rise
Data Input Hold After CLK Rise
Chip Select Set-Up
DH
CES
CEH
CHZ
CLZ
EOHZ
EOLZ
EOV
Chip Select Hold After CLK Rise
[12]
Clock to High-Z
3.5
3.5
3.5
3.5
3.5
4.0
3.5
5.5
5.5
[12]
Clock to Low-Z
0
0
0
0
0
0
[12, 13]
OE HIGH to Output High-Z
[12, 13]
OE LOW to Output Low-Z
[12]
OE LOW to Output Valid
Notes:
10. Input waveform should have a slew rate of 1 V/ns.
11. Unless otherwise noted, test conditions assume signal transition time of 3 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V, and output
loading of the specified IOL/IOH and load capacitance. Shown in (a) and (b) of AC test loads.
12. tCHZ, tCLZ, tEOV, tEOLZ, and tEOHZ are specified with a load capacitance of 5 pF as in part (b) of AC Test Loads. Transition is measured ± 200 mf from steady-state
voltage.
13. At any given voltage and temperature, tEOHZ is less than tEOLZ and tCHZ is less than tCLZ
.
9
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