Manual / Guide · 2022

Supplyframe 4-Bit Processor Badge — Hardware Reference

Author: Supplyframe, Inc.
Year: 2022
Type: Manual / Guide

hardware
schematic
pic24fj256ga704
4-bit processor
supplyframe

HARDWARE Revision 4a Nov-03-2022 Supplyframe, Inc. U1 PIC24FJ256GA704-I/PT B8 C7 C6 C5 C4 C3 C2 C1 C0 A7 A8 A9 A10 1 44 3 2 38 37 36 27 26 25 13 32 35 12 R17 R16 R15 R14 R13 R12 R11 R10 82 82 82 82 82 82 82 82 Ω Ω Ω Ω Ω Ω Ω Ω R9 82 Ω R8 82 Ω R7 82 Ω R6 82 Ω R5 82 Ω R4 82 Ω R3 82 Ω R2 82 Ω R1 82 Ω 1 C8 B15 B14 B13 B12 B11 B10 B9 A3 A4 C9 A2 31 34 5 + 30 4 15 14 11 10 9 8 3 2 + A B C R21 2K7 15 ALT Y0 Vcc E3 S19 14 Y1 E2 ON-OFF E1 GND Y2 + 12 R20 2K7 11 Y3 Y4 R18 2K7 10 Y5 9 Y6 7 Y7 R19 2K7 D1 D2 S1 6 5 4 8 U2 74HC138 13 S20 16 S2 D3 S3 D4 S4 D5 S5 D6 S6 D7 S7 D8 S8 MATRIX 17×16 1 15 3 2 A B C Y0 E3 + Y1 Vcc S9 D10 S10 D11 S11 D12 S12 D13 S13 D14 S14 D15 S15 D16 S16 D17 S17 D18 S18 13 Y2 12 Y3 11 Y4 10 Y5 9 18× BAT54 Supplyframe, Inc. Y6 7 Schematc diagram part 1 2 Y7 GND U3 74HC138 D9 6 14 E1 E2 16 8 4 5 R42 18K R41 18K R32 150Ω R40 18K C1 C2 C3 C4 100 nF 100 nF 100 nF µF R31 150Ω 19 17 28 A1 A0 AVdd Vdd Vdd 40 7 Vcap 3 MCLR +V GND 0 GND +3V RES 1 2 R39 18K R38 18K R37 18K R36 18K 10 C5 10µF 20 0 1 2 (PGD) 3 (TX) AA 1.5V OUT (RX) GND (PGC) Tx AA 1.5V IN + Rx + + PGD PGC +3V SAO R35 18K R34 18K R33 18K R22 2K7 R30 R29 R28 R27 R26 R25 R24 R23 150Ω 150Ω 150Ω 150Ω 150Ω 150Ω 150Ω 150Ω 43 42 B7 B6 41 B5 33 24 B4 B3 23 B2 18 22 B1 B0 MCLR U1 PIC24FJ256GA704-I/PT Schematc diagram part 2 Supplyframe, Inc. 3 AVss Vss Vss Vss 16 6 29 39 C8 B15 B14 B13 B12 B11 B10 B9 B8 C7 C6 C5 C4 C3 C2 C1 Output MCU Port (Anode Drivers) C0 CLK (SCH) OPCODE 0 EXR OPERAND X 1 CLK (KEY) OPERAND Y 2 PROGRAM MEMORY ADDRESS 3 -CLK (SCH) DATA INV bit 2 C IN STACK SOURCE C ENA V flag OUT TMP IN ADDER SUM ADDER CARRY DEST 4 OR AND XOR 5 ACCU OUT ACCU TMP ACCU IN 6 OPCODE OPERAND X OPERAND Y 7 Z flag OUT TMP IN C flag bit 0 OUT TMP IN SEL PAGE PGM 11 ROW 2 01 10 TOP ROW 00 RUN 13 ROW 4 03 12 ROW 3 02 9 SS 15 ROW 6 05 14 ROW 5 04 10 DIR 17 ROW 8 07 16 ROW 7 06 11 CARRY 19 ROW 10 09 18 ROW 9 08 12 SAVE 1B ROW 12 0B 1A ROW 11 0A 13 LOAD 1D ROW 14 0D 1C ROW 13 0C 14 1F BOTTOM ROW 0F 1E ROW 15 0E 15 BIN G BOTTOM LEFT F E D C B A 9 8 7 6 5 4 Full LED matrix 16×17 Total 172 LEDs 0603 182 Red LEDs 90 Yellow LEDs LED Matrix wiring map Supplyframe, Inc. 4 3 2 TOP RIGHT 1 0 8 Decoders 74AHC138 Out (Cathode Drivers) Bit Position ALCALINE AA BATTERY (2000 mAh) POWER SUPPLY Parameter Conditions Min Typical Max Supply Voltage MCU User Manual data 2V 3V 3.6 V 5.5µA 42 Years (**) 10 14 mA 143 h (6 days) 40 27 mA 74 h (3 days) 60 (*) 37 mA 54 h (2 days) 100 57 mA 35 h (1.5 days) 150 81 mA 24 h (1 day) 3V Dim = MAX Number of LEDs "ON" 3V, Sleep Mode (OFF) Operating Current @ 25°C (77°F) and calculated battery life Alkaline Battery life AA, 2 Ah (Calculated) (*) Average value in normal applications. (**) This is the theoretical (calculated) battery life. The shelf life of alkaline battery is about 10 years, so it will be drained much before the calculated period. Note: In practical tests with fresh alkaline batteries, the badge achieved operating times that were much longer than calculated. This was due to the battery voltage drop, causing the LED current to drop even more, decreasing the power consumption. The whole system worked ﬁne down to 1.82V, but the light intensity was low. TIMINGS Parameter Sync (*) Baud Rate (*) Dimmer Duty Cycle (*) AutoOﬀ Period (*) Parameters adjustable at runtime IPS (Instructions Per Second) (*) Conditions Min 1 Hz 400 Hz 1000 Hz 1200 2400 115,200 6% 100% 100% 20 minutes After any key pressed (except ON/OFF or ALT) 2.5 hours 0°C < TAMB < +85°C 32°F < TAMB < +185°F -1.5% Flash Data Retention VMAX or TMAX not violated 20 Years 5 Max 250,000 250,000 After Reset or Switch ON (*) These parameters are adjustable at runtime. Default 0.5 Timing Tolerance Supplyframe, Inc. Typical 0.15% +1.5%