Rochester Electronics P8798

The MCS-96 family of 16-bit microcontrollers includes numerous members, all designed for high-speed control applications. The 8X98 members are designed for applications that require the speed of a 16-bit microcontroller but are constrained by board space and cost requirements to an 8-bit external bus. The 8X98 members are fabricated using Intel's HMOS-III process. The CPU supports bit, byte, and word operations. A subset of the instruction set supports 32-bit double-word operations. At a 12 MHz input frequency, the 8098 can perform a 16-bit addition in 1.0 µs and a 16×16-bit multiplication or 32/16-bit division in 6.25 µs. In typical applications, instruction execution time averages 1 to 2 µs. Four high-speed capture inputs are provided to record the time of occurrence of external events. Six high-speed pulse generator outputs are provided to trigger external events at preset times. The high-speed output unit can simultaneously perform software timer functions. Up to four 16-bit software timers can run simultaneously. The on-chip A/D converter includes a sample-and-hold circuit that converts up to 4 multiplexed analog input channels to 10-bit digital values. Using a 12 MHz crystal, each conversion takes 2 µs. A serial port, a watchdog timer, and a PWM output signal are also provided on-chip. For the commercial (standard) temperature option, operating characteristics are guaranteed over a temperature range of 0℃ to +70℃. For the extended temperature range option, operating characteristics are guaranteed over a temperature range of -40℃ to +85℃. Unless otherwise specified, the specifications for both options are identical. For the extended burn-in option, burn-in is dynamic, performed at 125℃ with VCC = 5.5 V ± 0.5 V for a minimum of 160 hours, following the guidelines of MIL STD-883 Method 1015.

• 232-byte register file
• Register-to-register architecture
• 10-bit A/D converter with S/H
• Two 8-bit and two 4-bit I/O ports
• 20 interrupt sources
• PWM output
• ROM/EPROM lock
• High-speed I/O subsystem
• Extended temperature option available
• Full-duplex serial port
• Dedicated baud rate generator
• 6.25 µs 16 x 16 multiply operation
• 6.25 µs 32/16 divide operation
• 16-bit watchdog timer
• Four 16-bit software timers
• Two 16-bit counter/timers
• Runtime-programmable EPROM
• Extended burn-in option available