780034AY

Features:

• Internal ROM and RAM

• External memory expansion space: 64 Kbytes
• Minimum instruction execution time: 0.24 ms (@ fX = 8.38-MHz operation)
• I/O ports: 51 (5-V-tolerant N-ch open-drain: 4)
• 10-bit resolution A/D converter: 8 channels (AVDD = 1.8 to 5.5 V)
• Serial interface: 3 channels (multimaster-supporting I2C bus mode, UART mode, 3-wire serial I/O mode)
• Timer: 5 channels
• Power supply voltage: VDD = 1.8 to 5.5 V

Application

Telephones, home electric appliances, pagers, AV equipment, car audios, office automation equipment, etc.


Pinout




Specifications

Parameter	Symbol	Test Conditions			Ratings	Unit
Supply voltage	VDD				0.3 to +6.5	V
	AVDD				0.3 to VDD + 0.3Note	V
	AVREF				0.3 to VDD + 0.3Note	V
	AVSS				0.3 to +0.3	V
Input voltage	VI1	P00 to P03, P10 to P17, P20 to P25, P34 to P36, P40 to P47, 0.3 to VDD + 0.3Note V P50 to P57, P64 to P67, P70 to P75, X1, X2, XT1, XT2, RESET			0.3 to VDD + 0.3Note	V
	VI2	P30 to P33	N-ch open-drain	Without pull-up resistor	0.3 to +6.5	V
				With pull-up resistor	0.3 to VDD + 0.3Note	V
Output voltage	VO				0.3 to VDD + 0.3Note	V
Analog input voltage	VAN	P10 to P17		Analog input pin	AVSS 0.3 to AVREF + 0.3Note and 0.3 to VDD + 0.3Note	V
Output current,high	IOH	Per pin			10	mA
		Total for P00 to P03, P40 to P47, P50 to P57, P64 to P67, P70 to P75			15	mA
		Total for P20 to P25, P30 to P36			15	mA
Output current,low	IOL	Per pin for P00 to P03, P20 to P25, P34 to P36, P40 to P47, P64 to P67, P70 to P75			20	mA
		Per pin for P30 to P33, P50 to P57			30	mA
		Total for P00 to P03, P40 to P47, P64 to P67, P70 to P75			50	mA
		Total for P20 to P25			20	mA
		Total for P30 to P36			100	mA
		Total for P50 to P57			100	mA
Operatingambient temperature	TA				40 to +85	°C
Storage temperature	Tstg				65 to +150	°C

Description

The 780034AY are members of the mPD780034AY Subseries of the 78K/0 Series. This is a mPD780034A Subseries product with an added multimaster-supporting I2C bus interface, and is suitable for AV equipment applications.

A flash memory version, the mPD78F0034AY, that can operate in the same power supply voltage range as the mask ROM version, and various development tools, are available.