
Novatek Microelectronics
General Description
The NT7702 is a 240-bit output segment/common driver LSI suitable for driving large scale dot matrix LCD panels using as PDA/personal computers/work stations. Through the use of SST (Super Slim TCP) technology, it is ideal for substantially decreasing the size of the frame section of the LCD module. The NT7702 is good as both a segment driver and as a common driver, and a low power consuming, high precision LCD panel display can be assembled using the NT7702. In the segment mode, the data input is selected as 4bit parallel input mode or as 8bit parallel input mode by a mode (MD) pin. In the common mode, the data input/output pins are bi-directional and the four data shift directions are pin-selectable.
FEATUREs
(Segment mode)
■ Shift Clock frequency: 20 MHz (Max.) (VDD = 5 V ± 10%)
■ Adopts a data bus system
■ 4-bit/8-bit parallel input modes are selectable with a mode (MD) pin
■ Automatic transfer function with an enable signal
■ Automatic counting function when in the chip select
mode, causes the internal clock to be stopped by
automatically counting 240 bits of input data
(Common mode)
■ Shift clock frequency : 4.0 MHz (Max.)
■ Built-in 240-bits bidirectional shift register (divisible into 120-bits x 2)
■ Available in a single mode (240-bits shift register) or in a
dual mode(120-bits shift register x 2)
1. Y1 → Y240 Single mode
2. Y240 → Y1 Single mode
3. Y1 → Y120, Y121 → Y240 Dual mode
4. Y240 → Y121, Y120 → Y1 Dual mode
The above 4 shift directions are pin-selectable
(Both for segment mode and common mode)
■ Supply voltage for LCD driver: 15.0 to 30.0 V
■ Number of LCD driver outputs: 240
■ Low output impedance
■ Low power consumption
■ Supply voltage for the logic system: +2.5 to +5.5 V
■ COMS process
■ Package: 272pin TCP (Tape Carrier Package)
■ Not designed or rated as radiation hardened