155/163
uPSD3212A, uPSD3212C, uPSD3212CV
Table 142. ISC Timing (3V Devices)
Note: 1. For non-PLD Programming, Erase or in ISC By-pass Mod e.
2. For Program or Erase PLD only.
Figure 83. MCU Module AC Measurement I/O Waveform
Note:AC inputs during testing are driven at VCC–0.5V for a logic '1,' and 0.45V for a logic '0.'
Timing measurements are made at VIH(min ) fo r a logic '1,' and VIL(max) for a logic '0'
Figure 84. PSD MODULE AC Float I/O Waveform
Note: For timing purposes, a Port pin is considered to be no lo ng er floating when a 100mV change from load voltage occurs, and begins t o
float when a 100mV chan ge from the loaded VOH or VOL level occurs
IOL and IOH 20mA
Symbol Parameter Conditions Min Max Unit
tISCCF Clock (TCK, PC1) Frequency (except for PLD) (Note 1) 12 MHz
tISCCH Clock (TCK, PC1) High Time (except for PLD) (Note 1) 40 ns
tISCCL Clock (TCK, PC1) Low Time (except for PLD) (Note 1) 40 ns
tISCCFP Clock (TCK, PC1) Frequency (PLD only) (Note 2) 2MHz
tISCCHP Clock (TCK, PC1) High Time (PLD only) (Note 2) 240 ns
tISCCLP Clock (TCK, PC1) Low Time (PLD only) (Note 2) 240 ns
tISCPSU ISC Port Set Up Time 12 ns
tISCPH ISC Port Hold Up Time 5 ns
tISCPCO ISC Port Clock to Output 30 ns
tISCPZV ISC Port High-Impedance to Valid Output 30 ns
tISCPVZ ISC Port Valid Output to High-Impedance 30 ns
AI06650
VCC – 0.5V
0.45V
Test Points
0.2 VCC – 0.1V
0.2 VCC + 0.9V
AI06651
Test Reference Points
VOL + 0.1V
VOH – 0.1V
VLOAD – 0.1V
VLOAD + 0.1V
0.2 VCC – 0.1V