Information

DS28E25
DeepCover Secure Authenticator with
1-Wire SHA-256 and 4Kb User EEPROM
4Maxim Integrated
Pin Configurations
Pin Descriptions
PIN
NAME FUNCTION
SFN TO-92 TSOC TDFN-EP
2 3 1 3 GND Ground Reference
1 1 2 2 IO
1-Wire Bus Interface. Open-drain signal that requires an external
pullup resistor.
— 2 3, 4, 5, 6 1, 4, 5, 6 N.C. Not Connected
— — — — EP
Exposed Pad (TDFN only). Solder evenly to the board’s ground plane
for proper operation. Refer to Application Note 3273: Exposed Pads: A
Brief Introduction for additional information.
TOP VIEW
N.C.
IO
GND
N.C.
N.C.
N.C.
TSOC
+
5
4
6
2
3
1
DS28E25
16N.C. N.C.
25IO N.C.
34GN
DN
.C.
TDFN
(3mm × 3mm)
TOP VIEW
DS28E25
28E25
ymrrF
+
EP
NOTE: THE SFN PACKAGE IS QUALIFIED FOR ELECTRO-MECHANICAL CONTACT APPLICATIONS ONLY,
NOT FOR SOLDERING. FOR MORE INFORMATION, REFER TO APPLICATION NOTE 4132: ATTACHMENT
METHODS FOR THE ELECTRO-MECHANICAL SFN PACKAGE.
SFN
(6mm x 6mm x 0.9mm)
BOTTOM VIEW
12
IO GND
DS28E25
2
3
1
3
2
1
GND
N.C.
IO
TO-92
FRONT VIEWSIDE VIEW
ABRIDGED DATA SHEET