Five counter LCD double bond

V2005

An overview of the

  V2005 is using CMOS process design of a dedicated IC,

applied to the five digital pedometer.

FEATURES  

1. IC work in RC oscillatory way, shock resistance built-in;

2. The working voltage of 1.5 V, low power consumption (has a sleep mode);

3. 5 LCD display (can choose unit or binding 5 shows), 1/2, 1/4 duty, VLCD = 3 v.

4. The REST key to zero;

5. Press line, times built-in pressure capacitance;

6. TG leading edge trigger.

Electrical parameters

Functional description

  1. A quick test mode: TS2 VDD into quick test mode,

holding down the REST button at this time, the 5 digit

(namely, ten, hundred, thousand, million)

count at the same time, 00000111, 11,... , 99999.

  2. LCD show all test: normal mode, press and hold the REST key not to put,

the LCD show, let go to zero.

  3. Sleep function: if the TG and the REST of about 30 minutes later,

the IC into sleep mode (RC oscillator is stopped, LCD display closed),

trigger TG awaken and counter values, trigger the REST wake and the counter to zero.

4. LCD display mode:

LCD display mode display mode for the unit, such as 

The LCD panel

COM and SEG list

	SEG10	SEG9	SEG8	SEG7	SEG6	SEG5	SEG4	SEG3	SEG2	SEG1
COM1	D5	-	D4	-	D3	-	D2	M2	D1	M1
COM2	E5	C5	E4	C4	E3	C3	E2	C2	E1	C1
COM3	G5	B5	G4	B4	G3	B3	G2	B2	G1	B1
COM4	F5	A5	F4	A4	F3	A3	F2	A2	F1	A1

The principle diagram of the application

Note: power supply, VSS GND for times the pressure output.