HE84G762B datasheet(5/60 Pages) KB

5 / 60 page

KING BILLION ELECTRONICS CO., LTD

駿

億

電

子

股

份

有

限

公

司

HE84G762B

HE80004 Series

June 1, 2004

V0.92

This specification is subject to change without notice. Please contact sales person for the latest version before use.

Pin Name

Pin # I/O

Description

LCAP2B

O Charge Pump Capacitor Pin.

LCAP2A

O Charge Pump Capacitor Pin.

LCAP1A

O Charge Pump Capacitor Pin.

LCAP1B

O Charge Pump Capacitor Pin.

LCAP3A

O Charge Pump Capacitor Pin.

LVREG

Voltage Regulator Output. VDD is regulated to generate LVREG, which is in turns

pumped to LVP. Adjust resistor between LGS1 and LVREG to set LVREG voltage.

LGS1

I Regulator Voltage Setting

LVAG

O Reference Voltage Output. Fixed 0.9 Volt DC reference voltage

VDD_LCD(VDDA)

P Power supply for LCD charge-pump.

GND_LCD(VSSA)

P LCD power system ground.

OAC

O LCD frame signal for interfacing with LCD segment extender KD80.

OCCK

O LCD data load pin for interfacing with LCD segment extender KD80.

GND

P Power ground Input.

OPO

O Output of OP Amp.

OPIP

I Non-inverting input of OP Amp.

OPIN

I Inverting input of OP Amp.

DAO

O Alternate output of DAC.

O DAC Output.

RSTP_N

System Reset input pin. Level trigger, active low on this pin will put the chip in reset

state.

FXO,

FXI

72,

External fast clock pin. Two types of oscillator can be selected by MO_FXTAL (‘0’ for

RC type and ‘1’ for crystal type). For RC type oscillator, one resistor needs to be

connected between FXI and GND. For crystal oscillator, one crystal needs to be placed

between FXI and FXO. Please refer to application circuit for details.

TSTP_P

Test input pin. Please bond this pad and reserve a test point on PCB for debugging. But

for improving ESD, please connect this point with zero Ohm resistor to GND.

SXO,

SXI

75,

External slow clock pins. Slow clock is clock source for LCD display, TIMER1,

Time-Base and other internal blocks. Both crystal and RC oscillator are provided. The

slow clock type can be selected by mask option MO_SXTAL. Choose ‘0’ for RC type

and ‘1’ for crystal oscillator.

Input pin for x32 PLL circuit. Connect to external resistor and capacitors as shown in

application circuit.

VDD

Positive power Input. A 0.1 µF decoupling capacitors should be placed as close to IC

VDD and GND pads as possible for best decoupling effect.

PRT10[7..0]

79~86

8-bit bi-directional I/O port 10. The output type of I/O pad can also be selected by mask

option MO_10PP[7..0] (‘1’ for push-pull and ‘0’ for open-drain).

As the output structure of I/O pad does not contain tri-state buffer. When using the I/O

pad as input pad, “1” must be outputted before reading.

PRTD[7..2]

PRTD[1]/SIN

PRTD[0]/SOUT

87~94

8-bit bi-directional I/O port D. The output type of I/O pad can also be selected by mask

option MO_DPP[7..0] (‘1’ for push-pull and ‘0’ for open-drain).

As the output structure of I/O pad does not contain tri-state buffer. When using the I/O

as input, ‘1’ must be outputted before reading the pin.

PRTD[7..2] can be used as wake-up pins. PRTD[7..6] can be as external interrupt

sources.

PRTD[1] shares pad with UART Receiver SIN pin.

PRTD[0] shares pad with UART transmitter SOUT pin.

PRTC[7:0]

95~102 B

8-bit bi-directional I/O port C. The output type of I/O pad can also be selected by mask

option MO_CPP[7..0] (‘1’ for push-pull and ‘0’ for open-drain).

As the output structure of I/O pad does not contain tri-state buffer. When using the I/O

as input, ‘1’ must be outputted before reading the pin.

VDD_RAM

103

P Dedicated power input for RAM

IRO

104

O The Infrared output.

PWM

105

The PWM output can drive speaker or buzzer directly. Using VDD & PWM to drive

output device.

GND_PWM

106

P Dedicated Ground for PWM output.

CMSG[32..79]

107~154 O

COM[32..79] pads are shared with SEG[95..48] outputs. The functions of the pads to be

COM drivers or SEG drivers can be selected by mask option MO_COM[1..0]. Please

HE84G762B Datasheet(PDF) 5 Page - King blillion Electronics Co.,Ltd.

HE84G762B Datasheet(HTML) 5 Page - King blillion Electronics Co.,Ltd.

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

Datasheet Download

Link URL