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Single 2.8 V to 5.5 V power supply; Static to 8 MHz clock operation, as well as 32.768KHz capability; W65C816S compatible CPU; 16 MB linear address space; Twenty-nine priority encoded interrupts; Four UARTS's; Time of Day (ToD) clock features; 8 x 16 bit timer/counters; Bus Control Register; Many bus operating features and modes; 8 Programmable ...
The clock generator in a motherboard is often changed by computer enthusiasts to control the speed of a CPU, FSB, GPU or RAM. Typically the programmable clock generator is set by the BIOS at boot time to the selected value; although some systems have dynamic frequency scaling, which frequently re-programs the clock generator.
Single 5-volt power supply (the 8080 needed −5 V, +5 V, and +12 V). Single-phase 5-volt clock (the 8080 needed a high-amplitude (9 to 12 volts) non-overlapping two-phase clock ). Built-in DRAM refresh , which would otherwise require external circuitry, unless SRAM, more expensive and less dense (but faster), was used.
Each port has input data latching capability. Two programmable data direction registers (A and B) allow selection of data direction (input or output) on an individual I/O line basis. Also provided are two programmable 16-bit interval timer/counters with latches. Timer 1 may be operated in a one-shot or free-run mode.
On-chip switched-mode power supply and programmable low-dropout regulator (LDO) to generate core voltage; Two on-chip PLLs to generate 48 MHz USB and 150MHz core clocks; RP2350A has 30 GPIO pins, of which four can optionally be used as analog inputs, RP2350B has 48 GPIO pins where eight can be used as analog inputs.
The following is a list of CMOS 4000-series digital logic integrated circuits.In 1968, the original 4000-series was introduced by RCA.Although more recent parts are considerably faster, the 4000 devices operate over a wide power supply range (3V to 18V recommended range for "B" series) and are well suited to unregulated battery powered applications and interfacing with sensitive analogue ...
The SMBus clock is defined from 10 to 100 kHz while I²C can be 0–100 kHz, 0–400 kHz, 0–1 MHz and 0–3.4 MHz, depending on the mode. This means that an I²C bus running at less than 10 kHz will not be SMBus compliant since the SMBus devices may time out.
The dual version is called 556. It features two complete 555 timers in a 14-pin package; only the two power-supply pins are shared between the two timers. [21] [16] In 2020, the bipolar version was available as the NE556, [21] and the CMOS versions were available as the Intersil ICM7556 and Texas Instruments TLC556 and TLC552.