HD66137T Datasheet | Hitachi Semiconductor

Description The HD 66137T is a 240-channel mon driver which drives a dot matrix STN LCD panel. By changing the mode, this can be applied to 240- and 200- and 160- channel output. Through the use of a 43-V highvoltage CMOS process technology, a high-voltage drive of +21.5 V and - 21.5 V, centering on VM is possible. - 21.5V generated from +21.5 V with built-in switching circuit and external capacity. Low logicdrive voltage (3 V) is used. This device is used together with the segment driver HD66130, HD66134ST or HD66136. Features - - - - - - - - Display duty: Up to 1/240 LCD drive voltage: 43 V max Built-in switching circuit (to generate - 21.5 V) Number of LCD drive circuit: 240 Operating voltage: 2.5 to 5.5 V Intermediate voltage I/F Built-in alternating signal generation circuit Pin programmable Output mode change: 240-output mode 200-output mode 160-output mode - Built-in display-off function - Flex TCP 2 1 2 3 4 5 X1 X2 X3 X4 X5 Top view Note: The shape above does not indicate the actual outline. 236 237 238 239 240 X236 X237 X238 X239 X240 VLCDL VHL VML VLL VEEL VEO C1 C2 DIO2 M RESET MWS4 MWS3 MWS2 MWS1 MWS0 VCC MODE1 MODE0 DOC DISPOFF AMP SHL GND CL CCL M/S DIO1 VEER VLR VMR VHR VLCDR 273 272 271 270 269 268 267 266 265 264 263 262 261 260 259 258 257 256 255 254 253 252 251 250 249 248 247 246 245 244 243 242 241 Pin Arrangement Block Diagram X1- X240 - 2, - 3 VHL VLL VML - 1, - 3 VLCDL,R VEEL,R VCC GND Shift register D Q SR SR 1 20 Qφ φ D Shift register D Q SR SR 21 40 Qφ φD LCD drive circuit Level shifter VHR VLR VMR Level shifter Logic Logic Logic Logic Logic Shift register D Q SR SR 41 200 Qφ...