HI-8151PQT Holt Integrated Circuits, HI-8151PQT Datasheet - Page 2

• Manufacturer Part Number: HI-8151PQT
• Manufacturer: Holt Integrated Circuits

Specifications of HI-8151PQT

• Lead Free Status / RoHS Status: Supplier Unconfirmed

PIN DESCRIPTION TABLE
CONVOSC
CONVOUT
8020OPT
S1 to S38
DOUT30
DOUT32
DOUT38
SIGNAL
BPOSC
BPOUT
BPIN
VDD
VSS
VEE
DIN
CS
CL
LD
T1
T2
LOGIC INPUT Used in conjunction with T1 to control display mode. Normal mode is logic low.
LOGIC INPUT Open or high logic level selects the HI-8010/HI-8110
LOGIC INPUT Chip select - Active low
LOGIC INPUT Serial data input clock - Active low
LOGIC INPUT Latches data in shift register to the segment outputs - Active high
LOGIC INPUT Serial input data to the shift register
LOGIC INPUT Used in conjunction with T2 to control display mode. Normal mode is logic low.
FUNCTION
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
POWER
POWER
POWER
INPUT
INPUT
0 Volts
selects the HI-8020/HI-8120 Logic (HI-8050 & HI-8150 only)
Backplane frequency input. Either driven from an external source or connected
to BPOSC and an external resistor and capacitor.
Internal oscillator pin. Connected to BPIN and an external resistor and capacitor
+5V ±5%, Positive voltage of the backplane and segments
Used in conjunction with CONVOUT to generate the negative VEE voltage
on-chip (HI-8050 & HI-8150 only).
Used in conjunction with CONVOSC to generate the negative VEE voltage
on-chip (HI-8050 & HI-8150 only).
Negative voltage of the backplane and segments - between VSS and VDD - 35V
Segment outputs to LCD display
Backplane output to LCD display (See Figure 3 for cascading drivers)
Logic output from the 30th bit of the shift register. Use for pattern
verification or as the DIN of the next cascaded driver (HI-8050 & HI-8150 only).
Logic output from the 32nd bit of the shift register. Use for pattern
verification or as the DIN of the next cascaded driver (HI-8050 & HI-8150 only).
Logic output from the 38th bit of the shift register. Use for pattern
verification or as the DIN of the next cascaded driver.
HOLT INTEGRATED CIRCUITS
HI-8050/51, HI-8150/51
2
DESCRIPTION
CL CS
/
logic. A low