CY7C460A View Datasheet(PDF) - Cypress Semiconductor
Part Name
Description
Manufacturer
CY7C460A Datasheet PDF : 15 Pages
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CY7C460A/CY7C462A
CY7C464A/CY7C466A
AC Test Loads and Waveforms
5V
OUTPUT
R1 500Ω
5V
OUTPUT
R1 500Ω
30 pF
INCLUDING
JIG AND
SCOPE (a)
R2
333Ω
C460A–4
5 pF
INCLUDING
JIG AND
SCOPE
R2
333Ω
C460A–5
(b)
Equivalent to:
THÉVENIN EQUIVALENT
OUTPUT
200Ω
2V
3.0V
GND
≤ 5 ns
ALL INPUT PULSES
90%
10%
90%
10%
≤ 5 ns
C460A–6
Switching Characteristics Over the Operating Range[3, 6]
7C460A-10
7C462A-10
7C464A-10
7C466A-10
7C460A-15
7C462A-15
7C464A-15
7C466A-15
7C460A-25
7C462A-25
7C464A-25
7C466A-25
Parameter
Description
Min.
Max.
Min.
Max.
Min.
Max. Unit
tRC
Read Cycle Time
20
25
35
ns
tA
Access Time
10
15
25
ns
tRR
Read Recovery Time
10
10
10
ns
tPR
Read Pulse Width
10
15
25
ns
tLZR
tDVR[7]
tHZR[7]
Read LOW to Low Z
3
3
3
ns
Data Valid After Read HIGH
3
3
3
ns
Read HIGH to High Z
15
15
18
ns
tWC
Write Cycle Time
20
25
35
ns
tPW
Write Pulse Width
10
15
25
ns
tHWZ
Write HIGH to Low Z
5
5
5
ns
tWR
Write Recovery Time
10
10
10
ns
tSD
Data Set-Up Time
9
9
9
ns
tHD
Data Hold Time
0
0
0
ns
tMRSC
MR Cycle Time
20
25
35
ns
tPMR
MR Pulse Width
10
15
25
ns
tRMR
MR Recovery Time
10
10
10
ns
tRPW
Read HIGH to MR HIGH
10
15
25
ns
tWPW
Write HIGH to MR HIGH
10
15
25
ns
tRTC
Retransmit Cycle Time
20
25
35
ns
tPRT
Retransmit Pulse Width
10
15
25
ns
tRTR
Retransmit Recovery Time
10
10
10
ns
tEFL
MR to EF LOW
20
25
35
ns
tHFH
MR to HF HIGH
20
25
35
ns
tFFH
MR to FF HIGH
20
25
35
ns
tREF
Read LOW to EF LOW
10
15
25
ns
tRFF
Read HIGH to FF HIGH
10
15
25
ns
Notes:
6. Test conditions assume signal transmission time of 5 ns or less, timing reference levels of 1.5V and output loading of the specified IOL/IOH and 30-pF load
capacitance, as in part (a) of AC Test Loads, unless otherwise specified.
7. tHZR and tDVR use capacitance loading as in part (b) of AC Test Loads.
Document #: 38-06011 Rev. *A
Page 3 of 15
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