HP 64751 User Manual page 487

AC Electrical Specifications (64751-66506 and lower active probe board numbers) — Read and
Write Cycles
(Vcc = 5.0 Vdc +/-5%; GND = 0 Vdc; T
Num. Characteristic
16 CLKOUT High to AS, DS,
R/W High Impedance
17 AS, DS, CS Negated to R/W High
18 CLKOUT High to R/W High
20 CLKOUT High to R/W Low
21 R/W High to AS, CS Asserted
22 R/W Low to DS Asserted (Write)
23 CLKOUT High to Data-Out Valid
24 Data-Out Valid to Negating Edge of AS, CS
(Synchronous Write)
25 DS, CS Negated to Data-Out Invalid
(Data-Out Hold)
26 Data-Out Valid to DS Asserted (Write)
27 Data-In Valid to CLKOUT Low (Data Setup)
27A Late BERR, HALT,
B
BKPT Asserted to CLKOUT Low
(Setup Time)
28 AS, DS Negated to DSACKx, BERR, HALT
4
29 DS Negated to Data-In Invalid (Data-In Hold)
4
29A DS Negated to Data-In High Impedance
Chapter 13: Specifications and Characteristics
Emulator Specifications and Characteristics
= T to T )
A L H
MC68340
16.78 MHz
Symbol Min
t
CHSZ
t
SNRN
t
CHRH
t
CHRL
t
RAAA
t
RASA
t
CHDO
t
DVASN
t
SNDOI
t
DVSA
t
DICL
t
BELCL
t
SNDN
t
SNDI
t
SHDI
HP 64751
Max Min Max
— 60 — 0.5t
cyc
— 60 — 60
15 — 15 —
0 30 0 30
0 30 0 30
15 — 15 —
70 — 70 —
— 30 — 33
15 — 15 —
15 — 15 —
15 — 12 —
5 — 8 —
20 — 20 —
20 — — —
0 80 0 80
0 — 0 —
— 60 — 60
Unit
+40 ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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