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UCD3138 Datasheet(PDF) 7 Page - Texas Instruments |
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UCD3138 Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 89 page  7 UCD3138 www.ti.com SLUSAP2G – MARCH 2012 – REVISED SEPTEMBER 2016 Submit Documentation Feedback Product Folder Links: UCD3138 Device Comparison Table Copyright © 2012–2016, Texas Instruments Incorporated 3 Device Comparison Table 3.1 Product Family Comparison FEATURE UCD3138x 80 PINS ARM7TDMI-S Core Processor 31.25 MHz High Resolution DPWM Outputs (250-ps resolution) 8 Number of high speed independent feedback loops (number of regulated output voltages) 3 12-bit, 267ksps, General Purpose ADC channels 15 Digital comparators at ADC outputs 4 Flash memory (program) (UCD3138A64) 64 kB Flash memory (program) (UCD3138128) 128 kB Flash memory (data) 2 kB Flash security √ RAM 8 kB DPWM switching frequency up to 2 MHz Programmable fault inputs 4 High speed analog comparators with cycle-by-cycle current limiting 7 UART (SCI) 2 PMBus 1 I2C 1 SPI 1 Timers 4 (16 bit) and 2 (24 bit) Timer PWM outputs 4 Timer capture inputs 2 Watchdog √ On-chip oscillator √ Power-on reset and brown-out detector √ Sync IN and sync OUT functions √ Total GPIO (includes all pins with multiplexed functions such as, DPWM, Fault Inputs, SCI, and so forth) 43 External Interrupts 1 (1) This number represents an alternate pin out that is programmable via firmware. See the UCD3138 Digital Power Peripherals Programmer’s Manual for details. (2) To facilitate simple OVP and UVP connections both comparators B and C are connected to the AD03 pin. 3.2 Product Selection Matrix FEATURE UCD3138 64 PIN (RGC) UCD3138 40 PIN (RHA/RMH/RJA) ARM7TDMI-S core processor 31.25 MHz 31.25 MHz High resolution dPWM outputs (250-ps resolution) 8 8 Number of high speed independent feedback loops (number of regulated output voltages) 3 3 12-bit, 267ksps, general-purpose ADC channels 14 7 Digital comparators at ADC outputs 4 4 Flash memory (program) 32 KB 32 KB Flash memory (data) 2 KB 2 KB Flash security √ √ RAM 4 KB 4 KB DPWM switching frequency up to 2 MHz up to 2 MHz Programmable fault inputs 4 1 + 2(1) High speed analog comparators with cycle-by-cycle current limiting 7(2) 6(2) |
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