MBL8149N Datasheet | Fujitsu Semiconductor Limited

MBL8149H/N DESCRIPTION The Fujitsu MBL8749 is an 8-bit single-chip microputer that uses a 2K x 8-bit Electrically Programmable Read Only Memory (EPROM) for program memory. The EPROM can be erased by using an ultraviolet (UV) light source; thus, program memory for the MBL8749 can be changed as often as required. Also included in the MBL8749 are: 256 x 8-bit static RAM, 27 I/O lines, an 8-bit timer/counter, and a clock generator. The device can be ordered in either of two speed versions: N-version for operation at 6MHz and the H-version for operation at 11 MHz. Foreither frequency, the operating temperature range is O°C to 70°C. The MBL8749 is fabricated using an N-channel, 2-layer polysilicon-gate MOS process. The MBL8749 is housed in a 40-pin ceramic windowed DIP and requires a single +5-volt supply for basic operation and a 21-voltsupply for programming the EPROM. The MBL8749 is well suited for applications such as system evaluation, system prototyping, and low-volume production work. Features - 2K x a-bit program memory (EPROM) - 256 x 8-bit data memory (static RAM) - a-level stack - a pairs of working registers - 27 I/O lines: Two a-bit I/O ports, one a-bit data bus, two test inputs, and one interrupt input - a-bit timer/counter - On-chip clock generator (or external clock source) - Single-level interrupt - External pr.Qgram mode - Single-step operation - RAM retention in low-power standby mode - ALU functions: Addition, decimal adjust addition, and logic operations - Instruction cycle time: 1.36,...s for H-version (11 MHz) and 2.5,...s for N-Version (6MHz) - Powerful instruction set 96 instructions (230 op-codes). All instructions plete in one or two instruction cycles with 70% being of the single-byte type - Some instructions can process ROM contents as data October 1986 Edition 1.0 Ceramic DIP (DIP-40C-A04) PIN ASSIGNMENT TO XTAL1 XTAL2 'RREf 'lill 'NT EA...