Cypress CY7C132 Manual De Usuario
CY7C132, CY7C136
CY7C136A, CY7C142, CY7C146
Document #: 38-06031 Rev. *E
Page 4 of 15
Capacitance
This parameter is guaranteed but not tested.
Parameter
Description
Test Conditions
Max
Unit
C
IN
Input Capacitance
T
A
= 25
°C, f = 1 MHz, V
CC
= 5.0V
15
pF
C
OUT
Output Capacitance
10
pF
Figure 3. AC Test Loads and Waveforms
3.0V
5V
OUTPUT
R1 893
Ω
R2
347
347
Ω
30 pF
INCLUDING
JIG AND
SCOPE
GND
90%
90%
10%
< 5 ns
< 5 ns
5V
OUTPUT
R1 893
Ω
R2
347
347
Ω
5 pF
INCLUDING
JIG AND
SCOPE
(a)
(b)
OUTPUT
1.4V
Equivalent to:
TH ÉVENIN EQUIVALENT
5V
281
Ω
30 pF
BUSY
OR
INT
INT
BUSY Output Load
(CY7C132/CY7C136 Only)
10%
ALL INPUT PULSES
250
Ω
Switching Characteristics
Over the Operating Range (Speeds -15, -25, -30)
Parameter
Description
7C136-15
7C146-15
7C132-25
7C136-25
7C142-25
7C146-25
7C142-25
7C146-25
7C132-30
7C136-30
7C142-30
7C146-30
7C136-30
7C142-30
7C146-30
Unit
Min
Max
Min
Max
Min
Max
Read Cycle
t
RC
Read Cycle Time
15
25
30
ns
t
AA
Address to Data Valid
15
25
30
ns
t
OHA
Data Hold from Address Change
0
0
0
ns
t
ACE
CE LOW to Data Valid
15
25
30
ns
t
DOE
OE LOW to Data Valid
10
15
20
ns
t
LZOE
OE LOW to Low Z
3
3
3
ns
t
HZOE
OE HIGH to High Z
10
15
15
ns
t
LZCE
CE LOW to Low Z
3
5
5
ns
t
HZCE
CE HIGH to High Z
10
15
15
ns
t
PU
CE LOW to Power Up
0
0
0
ns
t
PD
CE HIGH to Power Down
15
25
25
ns
Shaded areas contain preliminary information.
Notes
8. Test conditions assume signal transition times of 5 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V and output loading of the specified I
OL
/I
OH,
and 30 pF load capacitance.
9. AC test conditions use V
OH
= 1.6V and V
OL
= 1.4V.
10. At any given temperature and voltage condition for any given device, t
HZCE
is less than t
LZCE
and t
HZOE
is less than t
LZOE
.
11. t
LZCE
, t
LZWE
, t
HZOE
, t
LZOE,
t
HZCE,
and t
HZWE
are tested with C
L
. Transition is measured ± 500 mV from steady state
voltage.