NEC UPD8039L
The NEC /.IPDS049 and /.IPDS039L are single chip 8-bit microcomputers. The processors differ only in their internal program memory options: the /.IPDS049 has 2K x S bytes of mask ROM and the /.IPDS039L has external program memory.DESCRIPTION
Both of these devices feature new, high performance 11 MHz operation. F EATU R ES● High Performance 11 MHz Operation
● Full',' Compatible with Industry Standard S049/S039
● Pin Compatible with the./.IPD8048/S74S/S035
● :'JMOS Silicon Gate Technology Requiring a Single +5V ±10%Supply
● 1.36/.1s Cycle Time. All Instructions 1 or 2 Bytes
● Programmable Interval Timer/Event Counter
● 2K x 8 Bytes of ROM, 12S x S Bytes of RAM
● Single Level Interrupt
● 96 Instructions: 70 Percent Single Byte
● 27 I/O Lines
● Internal Clock Generator
● Expandable with SOSOA/SOS5A Peripherals
● Available in Both Ceramic and Plastic 40-Pin Packages PIN CONFIGURATION TO XTALl XTAL2 RESEsTs INT EA RD PsEN WR ALE DBO DBl DB2 DB3 DB4 DB5 DB6 DB7 Vss /.IPD 8049/ 8039L Vee Tl P27 P26 P25 P24 P17 P16 P15 . P14 P13 P12 Pll Pl0 VDD PROG P23 P22 P21 P20 II 357 J.L PD8049/8039L The NEC IlPDS049 and pPDS039L are high performance, single component, S-bit parallel microcomputers using N-channel sil icon gate MOS technology_ T,he pPDS049 and pPDS039L function efficiently in control as well as arithmetic applications.