
CAT28F001
SUPPLY CHARACTERISTICS
Limits
Symbol
V LKO
V CC
V PPL
V PPH
V HH
Parameter
V CC Erase/Write Lock Voltage
V CC Supply Voltage
V PP During Read Operations
V PP During Erase/Program
RP, OE Unlock Voltage
Min
2.5
4.5
0
11.4
11.4
Max.
5.5
6.5
12.6
12.6
Unit
V
V
V
V
V
A.C. CHARACTERISTICS, Read Operation
V CC = +5V ± 10%, unless otherwise specified
J E D E C
S t a n d a r d
2 8 F 0 0 1 - 9 0 ( 7 )
2 8 F 0 0 1 - 1 2 ( 7 )
S y m b o l
S y m b o l
P a r a m e t e r
M i n
M a x
M i n
M a x
U n i t s
t A V A V
t E L Q V
t A V Q V
t G L Q V
-
t R C
t C E
t A C C
t O E
t O H
R e a d C y c l e T i m e
C E A c c e s s T i m e
A d d r e s s A c c e s s T i m e
O E A c c e s s T i m e
O u t p u t H o l d f r o m A d d r e s s O E / C E C h a n g e
9 0
0
9 0
9 0
3 5
1 2 0
0
1 2 0
1 2 0
5 0
n s
n s
n s
n s
n s
t G L Q X
t O L Z
( 1 ) ( 6 )
O E t o O u t p u t i n L o w - Z
0
0
n s
t E L Q X
t L Z
( 1 ) ( 6 )
C E t o O u t p u t i n L o w - Z
0
0
n s
t G H Q Z
t D F
( 1 ) ( 2 )
O E H i g h t o O u t p u t H i g h - Z
3 0
3 0
n s
t E H Q Z
t H Z
( 1 ) ( 2 )
C E H i g h t o O u t p u t H i g h - Z
3 5
5 5
n s
t P H Q V
t P W H
R P H i g h t o O u t p u t D e l a y
6 0 0
6 0 0
n s
Figure 1. A.C. Testing Input/Output Waveform (3)(4)(5)
Figure 2. Highspeed A.C. Testing Input/Output
Waveform(3)(4)(5)
VCC - 0.3V
2.0 V
3.0 V
0.0 V
INPUT PULSE LEVELS
0.8 V
REFERENCE POINTS
0.0 V
INPUT PULSE LEVELS
1.5 V
REFERENCE POINTS
Testing Load Circuit (example)
1.3V
1N914
3.3K
Testing Load Circuit (example)
1.3V
1N914
3.3K
DEVICE
UNDER
TEST
CL = 100 pF
OUT
DEVICE
UNDER
TEST
CL = 30 pF
OUT
CL INCLUDES JIG CAPACITANCE
CL INCLUDES JIG CAPACITANCE
Note:
(1) This parameter is tested initially and after a design or process change that affects the parameter.
(2) Output floating (High-Z) is defined as the state where the external data line is no longer driven by the output buffer.
(3) Input Rise and Fall Times (10% to 90%) < 10 ns.
(4) Input Pulse Levels = 0.45V and 2.4V. For High Speed Input Pulse Levels 0.0V and 3.0V.
(5) Input and Output Timing Reference = 0.8V and 2.0V. For High Speed Input and Output Timing Reference = 1.5V.
(6) Low-Z is defined as the state where the external data may be driven by the output buffer but may not be valid.
(7) For load and reference points, see Fig. 1
? 2008 SCILLC. All rights reserved.
Characteristics subject to change without notice
5
Doc. No. MD-1078, Rev. K