Renesas QB-RL78G1C User Manual page 39

QB-RL78G1C In-Circuit Emulator
- TTL input buffer characteristics
If the port input mode register (PIM) is used to set the input of a pin that can be set for the TTL buffer to the TTL
level, the high-level input voltage characteristics differ between the target device and emulator. See Table 4-3
for details. The following pins can be set for the TTL buffer.
Target device
QB-RL78G1C
- The detection voltage value of the voltage detector (LVD)
LVD detection voltage differs between the target device and the emulator.
.
R20UT2079EJ0100 Rev.1.00
2013.07.12
Table 4-4. Input Characteristics of TTL
Item
VIH MIN
VIL MAX
VIH MIN
VIL MAX
Table 4-5. The detection voltage
Target device
Rising edge Failing edge
2.50V 2.45V
2.61V 2.55V
2.71V 2.65V
2.81V 2.75V
2.92V 2.86V
3.02V 2.96V
3.13V 3.06V
3.75V 3.67V
4.06V 3.98V
Conditions
2.2V（4.0 V  VDD  5.5 V）
2.0V（2.4 V  VDD < 2.7 V）
1.5V（2.4 V  VDD < 2.7 V）
0.8V （4.0 V  VDD  5.5 V）
0.5V （2.7 V  VDD < 4.0 V）
0.32V （2.4 V  VDD < 2.7 V）
2.0V（3.3 V  VDD  5.5 V）
1.17V（2.4 V  VDD < 3.3 V）
0.8V（3.3 V  VDD  5.5 V）
0.63V（2.4 V  VDD < 3.3 V）
QB-RL78G1C
Rising edge Failing edge
2.46V
2.56V
2.66V
2.76V
2.87V
2.97V
3.07V
3.68V
3.99V
CHAPTER 4 CAUTIONS
Page 39 of 45