CY7C344-20PC Cypress Semiconductor Corp, CY7C344-20PC Datasheet - Page 5

• Manufacturer Part Number: CY7C344-20PC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C344-20PC

• Family Name: MAX®
• Memory Type: EPROM
• # Macrocells: 32
• Number Of Usable Gates: 600
• Frequency (max): 71.4MHz
• Propagation Delay Time: 20ns
• Number Of Logic Blocks/elements: 1
• # I/os (max): 16
• Operating Supply Voltage (typ): 5V
• In System Programmable: No
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (max): 5.25V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 28
• Package Type: PDIP
• Lead Free Status / Rohs Status: Not Compliant

Document #: 38-03006 Rev. *B
External Synchronous Switching Characteristics
Parameter
t
t
t
f
f
f
f
t
Notes:
13. This specification is a measure of the delay associated with the internal register feedback path. This delay plus the register set-up time, t
14. This specification indicates the guaranteed maximum frequency at which a state machine configuration with external only feedback can operate.
15. This specification indicates the guaranteed maximum frequency at which a state machine with internal-only feedback can operate. If register output states must
16. This frequency indicates the maximum frequency at which the device may operate in data-path mode (dedicated input pin to output pin). This assumes that no
17. This specification indicates the guaranteed maximum frequency in synchronous mode, at which an individual output or buried register can be cycled by a clock
18. This parameter indicates the minimum time after a synchronous register clock input that the previous register output data is maintained on the output pin.
PO
CF
P
MAX1
MAX2
MAX3
MAX4
OH
period for an internal state machine configuration. This parameter is tested periodically by sampling production material.
also control external points, this frequency can still be observed as long as it is less than 1/t
is tested periodically by sampling production material.
expander logic is used.
signal applied to either a dedicated input pin or an I/O pin.
Asynchronous Preset to Registered Output
Delay
Synchronous Clock to Local Feedback Input
External Synchronous Clock Period (1/f
External Maximum Frequency(1/(t
Maximum Frequency with Internal Only
Feedback (1/(t
Data Path Maximum Frequency, least of
1/(t
Maximum Register Toggle Frequency
1/(t
Output Data Stable Time from Synchronous
Clock Input
WL
WL
[4]
+ t
+ t
WH
WH
[4, 18]
), 1/(t
)
[4, 17]
CF
S
+ t
+ t
H
S
), or (1/t
))
[4, 15]
Description
CO1
USE ULTRA37000
)
[4, 16]
ALL NEW DESIGNS
CO1
+ t
MAX3
S
))
[4, 14]
[4, 13]
)
[4]
Com’l /Ind
Mil
Com’l /Ind
Mil
Com’l/Ind
Mil
Com’l/Ind
Mil
Com’l/Ind
Mil
Com’l/Ind
Mil
Com’l/Ind
Mil
Com’l/Ind
Mil
Over Operating Range (continued)
TM
CO1
FOR
. This specification assumes no expander logic is used. This parameter
Min.
50.0
50.0
71.4
71.4
83.3
83.3
83.3
83.3
13
13
7C344-15
3
3
Max.
15
15
4
4
Min.
41.6
41.6
62.5
62.5
71.4
71.4
71.4
71.4
14
14
7C344-20
3
3
[7]
Max.
20
20
4
4
Min.
33.3
33.3
45.4
45.4
62.5
62.5
62.5
62.5
16
16
7C344-25
S
3
3
, is the minimum internal
CY7C344
Page 5 of 15
Max.
25
25
7
7
MHz
MHz
MHz
MHz
Unit
ns
ns
ns
ns