MBL8149H
MBL8149H is NMOS Single-Chip 8-Bit Microcomputer manufactured by 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...
