MITSUBISHI 〈DIGITAL ASSP〉
M66222SP/FP
128 × 8-BIT × 2 MAIL-BOX
SWITCHING CHARACTERISTICS MEASUREMENT CIRCUIT
Input pulse level
: VIH = 3.0V, VIL = 0V
Input pulse rise/fall time
: tr/tf = 5ns
Input timing reference voltage : 1.5V
Output timing decision voltage : 1.5V
Output load
: Figure 3 ~ 4 (The capacitance includes stray wiring capacitance and the probe input capacitance.)
+ 5V
+ 5V
1250Ω
1250Ω
I/O
I/O
775Ω
100pF
775Ω
5pF
Fig 3. Output Load
Fig 4. Output Load (to ten, tdis)
8