¡ Semiconductor
MSM80C88A-10RS/GS/JS
Timing Responses
Parameter
5 MHz Spec.
8 MHz Spec.
10 MHz Spec.
Symbol VCC = 4.5 V to 5.5 V VCC = 4.75 V to 5.25 V VCC = 4.75 V to 5.25 V Unit
Ta = –40 to +85°C Ta = 0 to +70°C Ta = 0 to +70°C
Command Active Delay (See Note 1) tCLML
Command Inactive Delay (See Note 1) tCLMH
READY Active to Status Passive
(See Note 4)
tRYHSH
Min.
5
5
—
Max.
45
45
110
Min.
5
5
—
Max.
35
45
65
Min.
5
5
—
Max.
35 ns
45 ns
45 ns
Status Active Delay
tCHSV
10
110
10
60
10
45 ns
Status Inactive Delay
tCLSH
10
130
10
70
10
60 ns
Address Valid Delay
tCLAV
10
110
10
60
10
60 ns
Address Hold Time
tCLAX
10
—
10
—
10
— ns
Address Float Delay
tCLAZ
tCLAX
80
tCLAX
50
tCLAX
50 ns
Status Valid to ALE High (See Note 1) tSVLH
—
35
—
25
—
25 ns
Status Valid to MCE High (See Note 1) tSVMCH
—
35
—
30
—
30 ns
CLK Low to ALE Valid (See Note 1) tCLLH
—
35
—
25
—
25 ns
CLK Low to MCE High (See Note 1) tCLMCH
—
35
—
25
—
25 ns
ALE Inactive Delay (See Note 1)
tCHLL
4
35
4
25
4
25 ns
Data Valid Delay
tCLDV
10
110
10
60
10
60 ns
Data Hold Time
tCHDX
10
—
10
—
10
— ns
Control Active Delay (See Note 1)
tCVNV
5
45
5
45
5
45 ns
Control Inactive Delay (See Note 1) tCVNX
5
45
5
45
5
45 ns
Address Float to RD Active
tAZRL
0
—
0
—
0
— ns
RD Active Delay
tCLRL
10
165
10
100
10
70 ns
RD Inactive Delay
tCLRH
10
150
10
80
10
60 ns
RD Inactive to Next Address Active
tRHAV tCLCL-45 — tCLCL-40 — tCLCL-35 — ns
Direction Control Active Delay
(See Note 1)
tCHDTL
—
50
—
50
—
50 ns
Direction Control Inactive Delay
(See Note 1)
tCHDTH
—
35
—
30
—
30 ns
GT Active Delay (See Note 5)
tCLGL
0
85
0
50
0
45 ns
GT Inactive Delay
tCLGH
0
85
0
50
0
45 ns
RD Width
tRLRH 2tCLCL-75 — 2tCLCL-50 — 2tCLCL-40 — ns
Output Rise Time (From 0.8 V to 2.0 V) tOLOH
—
15
—
15
—
15 ns
Output Fall Time (From 2.0 V to 0.8 V) tOHOL
—
15
—
15
—
15 ns
Notes: 1. Signals at MSM82C84A-2 or MSM82C88-2 are shown for reference only.
2. Setup requirement for asynchronous signal only to guarantee recognition at next
CLK.
3. Applies only to T2 state (8 ns into T3)
4. Applies only to T3 and wait states.
5. CL = 40 pF (RQ/GT0, RQ/GT1)
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