µPD720112
2. ELECTRICAL SPECIFICATIONS
2.1 Buffer List
• 2.5 V Oscillator interface
X1_CLK, X2
• 5 V Schmitt input buffer
SYSRSTB, CSB(4:1), VBUSM
• 3.3 V Schmitt input buffer
BUS_SELF, LPWRM
• 3.3 V input buffer
EXROM_EN, TEST, SCAN_MODE
• 3.3 V IOL = 3 mA bi-directional Schmitt input buffer with input enable (OR-type)
SDA/GANG_B
• 3.3 V IOL = 3 mA output buffer
SCL
• 5 V IOL = 12 mA output buffer
AMBER, GREEN, LED2
• 5 V IOL = 12 mA N-ch open drain buffer
PPB(4:1), LED4, LED3, LED1
• USB2.0 interface
RPU, DPU, DMU, DP(4:1), DM(4:1), RREF
Above, “5 V” refers to a 3 V input buffer that is 5 V tolerant (has 5 V maximum input voltage). Therefore, it is
possible to have a 5 V connection for an external bus.
Data Sheet S16616EJ2V0DS
7