BM1397

Doc Project

BM1397

The BM1397 is a SHA256 bitcoin mining ASIC from Bitmain. The BM1397 is mostly undocumented. This repo aims to fix that.

Usage

Variants

Really don’t know what this table means, but it mentions a lot of variants of the BM1397

Variant	Used In	Notes
BM1397AD	S17, S17 Pro, T17	original model of Bitmain’s BM1397 design
BM1397AG	S17, S17 Pro, T17, S17+, T17+	revision allows greater resilience at high temperatures
BM1397AH	S17, S17 Pro, T17	tend to have stable hashrate even when the voltage is insufficient
BM1397AI	all	fits all models. signal clarity, backward compatibility and significantly increased stability; better performance
BM1397AF	S17, S17+, T17, T17+	??

Recommended Operating Conditions

Pin Configurations and Functions

Pin Functions

Mode 0 Pin Number	Mode 1 Pin Number	Pin Name	Description
1	1	VDD3_0
2	2	VDD2_0
3	3	VDD1_0
4	4	ADDR0
5	5	ADDR1
6	6	ADDR2
7	7	TEST
8	25	CLKO
9	26	CO
10	27	RI
11	28	NRSTO
12	29	BO
13	13	PLL_VSS
14	14	PLL_VDD
15	15	VDDIO08_0
16	16	VDDIO18_0
17	17	VDDIO18_1
18	18	VDDIO08_1
19	19	VSS
20	20	PIN_MODE
21	21	TEMP_N
22	22	TEMP_P
23	23	RF
24	24	TF
25	8	BI
26	9	NRSTI
27	10	RO
28	11	CI
29	12	CLKI
30	30	VDD1_1
31	31	VDD2_1
32	32	VDD3_1
33	33	VDD
34	34	VSS

Modes

Programing Manual

• BM1397
• BM1366

Initializing

Mining

Physical Dimensions

PCB Footprint

Thermal

Circuit Examples

References

• ZeusBTC Antminer S17 Repair Guide
• Another slightly different S17 Repair Guide
• Antminer 17 Series Chip Replacement Guide