CY7C144-35AC Cypress Semiconductor Corp, CY7C144-35AC Datasheet - Page 6

• Manufacturer Part Number: CY7C144-35AC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C144-35AC

• Density: 64Kb
• Access Time (max): 35ns
• Package Type: TQFP
• Operating Temp Range: 0C to 70C
• Supply Current: 160mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 64
• Word Size: 8b
• Lead Free Status / Rohs Status: Not Compliant

Document #: 38-06034 Rev. *C
AC Test Loads and Waveforms
Switching Characteristics
OUTPUT
READ CYCLE
t
t
t
t
t
t
t
t
t
t
t
WRITE CYCLE
t
t
t
t
t
t
Notes:
10. At any given temperature and voltage condition for any given device, t
11. Test conditions used are Load 3.
12. This parameter is guaranteed but not tested.
RC
AA
OHA
ACE
DOE
LZOE
HZOE
LZCE
HZCE
PU
PD
WC
SCE
AW
HA
SA
PWE
OUTPUT
9. 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
Parameter
I
[12]
[12]
C = 30 pF
OI
/I
(a) Normal Load (Load1)
[10, 11,12]
[10, 11,12]
[10, 11,12]
[10, 11,12]
OH
and 30-pF load capacitance.
Load (Load 2)
Read Cycle Time
Address to Data Valid
Output Hold From Address
Change
CE LOW to Data Valid
OE LOW to Data Valid
OE Low to Low Z
OE HIGH to High Z
CE LOW to Low Z
CE HIGH to High Z
CE LOW to Power-Up
CE HIGH to Power-Down
Write Cycle Time
CE LOW to Write End
Address Set-Up to Write End
Address Hold From Write End
Address Set-Up to Write Start
Write Pulse Width
C = 30 pF
5V
Description
R1 = 893Ω
R2 = 347Ω
Over the Operating Range
GND
3.0V
≤ 3 ns
OUTPUT
10%
Min.
C = 30pF
(b) Th évenin Equivalent (Load 1)
15
15
12
12
12
7C144-15
7C145-15
3
3
3
0
2
0
ALL INPUT PULSES
90%
Max.
HZCE
15
15
10
10
10
15
[9]
R
is less than t
TH
= 250Ω
Min.
25
25
20
20
20
7C144-25
7C145-25
3
3
3
0
2
0
LZCE
V
90%
Max.
TH
and t
25
25
15
15
15
25
10%
= 1.4V
≤ 3 ns
HZOE
Min.
is less than t
35
35
30
30
25
7C144-35
7C145-35
3
3
3
0
2
0
OUTPUT
C = 5 pF
Max.
(c) Three-State Delay (Load 3)
35
35
20
20
20
35
LZOE
.
Min.
55
55
45
45
40
7C144-55
7C145-55
3
3
3
0
2
0
CY7C144
CY7C145
Max.
55
55
25
25
25
55
5V
Page 6 of 20
R1 = 893Ω
R = 347Ω
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
[+] Feedback