CAT28F001 CATALYST [Catalyst Semiconductor], CAT28F001 Datasheet - Page 5

• Manufacturer Part Number: CAT28F001
• Description: 1 Megabit CMOS Boot Block Flash Memory
• Manufacturer: CATALYST [Catalyst Semiconductor]

A.C. CHARACTERISTICS, Read Operation
V
SUPPLY CHARACTERISTICS
Figure 1. A.C. Testing Input/Output Waveform
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)
(8) For load and reference points, see Fig. 2
Testing Load Circuit (example)
t
t
t
t
-
t
t
t
t
t
CC
AVAV
ELQV
AVQV
GLQV
GLQX
ELQX
GHQZ
EHQZ
PHQV
Symbol
JEDEC
0.45 V
2.4 V
DEVICE
UNDER
TEST
For load and reference points, see Fig. 1
Symbol
= +5V 10%, unless otherwise specified
V
V
V
V
V
LKO
CC
PPL
PPH
HH
INPUT PULSE LEVELS
Standard
t
t
t
t
t
t
t
t
t
t
Symbol
RC
CE
ACC
OE
OH
OLZ
LZ
DF
HZ
PWH
(1)(6)
(1)(2)
(1)(2)
(1)(6)
1.3V
1N914
3.3K
C L = 100 pF
Read Cycle Time
CE Access Time
Address Access Time
OE Access Time
Output Hold from Address OE/CE Change
OE to Output in Low-Z
CE to Output in Low-Z
OE High to Output High-Z
CE High to Output High-Z
RP High to Output Delay
V
V
V
V
RP, OE Unlock Voltage
CC
CC
PP
PP
2.0 V
0.8 V
During Read Operations
During Erase/Program
Erase/Write Lock Voltage
Supply Voltage
Parameter
C L INCLUDES JIG CAPACITANCE
OUT
REFERENCE POINTS
Parameter
5108 FHD F03
5108 FHD F04
(3)(4)(5)
28F001-70
5
Min.
70
0
0
0
Figure 2. Highspeed A.C. Testing Input/Output
Testing Load Circuit (example)
3.0 V
0.0 V
DEVICE
UNDER
Max.
30
55
600
TEST
70
70
27
(8)
INPUT PULSE LEVELS
28F001-90
Min.
11.4
11.4
Min
90
Waveform(3)(4)(5)
2.5
4.5
0
0
0
0
Max.
600
90
90
35
30
35
Limits
(7)
1.3V
1N914
3.3K
C L = 30 pF
120
28F001-12
Min.
0
0
0
1.5 V
Max.
12.6
12.6
5.5
6.5
120
120
600
Max.
50
30
55
C L INCLUDES JIG CAPACITANCE
OUT
(7)
REFERENCE POINTS
28F001-15
Min.
150
Doc. No. 25071-00 2/98 F-1
0
0
0
CAT28F001
Max.
150
150
600
Unit
55
30
55
V
V
V
V
V
(7)
5108 FHD F03A
5108 FHD F05
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns