LC863420B

Ordering number : ENN7935 LC863448B, LC863440B LC863432B, LC863428B LC863424B, LC863420B LC863416B Overview CMOS IC FROM 48K/40K/32K/28K/24K/20K/16K-byte, RAM 640/512-byte on-chip and 352 × 9-bit OSD RAM 8-bit 1-chip Microcontroller The LC863448/40/32/28/24/20/16B are 8-bit single chip microcontrollers with the following on-chip functional blocks : CPU : Operable at a minimum bus cycle time of 0.424µs On-chip ROM capacity Program ROM : 48K/40K/32K/28K/24K/20K/16K-bytes CGROM : 16K- bytes On-chip RAM capacity : 640/512-bytes OSD RAM : 352 × 9-bits Closed-Caption TV controller and the on-screen display controller Closed-Caption data slicer Four channels × 6-bit AD Converter Three channels × 7-bit PWM 16-bit timer/counter, 14-bit base timer IIC-bus compliant serial interface circuit (Multi-master type) ROM correction function 12-source 8-vectored interrupt system Integrated system clock generator and display clock generator Only one X’tal oscillator (32.768kHz) for PLL reference is used for both generators TV control and the Closed Caption function All of the above functions are fabricated on a single chip. Ver.0.92 62102 73004 JO IM No.7935-1/17 LC863448B/40B/32B/28B/24B/20B/16B Features ■Read-Only Memory (ROM) : 49152 × 8-bits/40960 × 8-bits/32768 × 8-bits/ 28672 × 8-bits/24576 × 8-bits/20480 × 8-bits/ 16384 × 8-bits for program 16128 × 8-bits for CGROM ■Random Access Memory (RAM) : 512 × 8-bits (working area) : LC863448B/40B 384 × 8-bits (wor...