ABRIDGED DATA SHEET
MAX36051
DeepCover Security Manager
with 128 Bytes of Nonimprinting Memory
General Description
DeepCover™ embedded security solutions cloak sensi-
tive data under multiple layers of advanced physical secu-
rity to provide the most secure storage possible.
Features
●ꢀ 128ꢀBytesꢀofꢀPatentedꢀNonimprintingꢀMemoryꢀwithꢀ
High-Speed Erase
●ꢀ TwoꢀGeneral-Purpose,ꢀTamper-DetectꢀComparatorsꢀ
The MAX36051 DeepCover security manager is a 4-wire-
compatible controller specifically intended to address
the temperature and voltage monitoring requirements of
personal computers, USB flash memory drives, and other
equipment where data protection and security is criti-
cal. The device incorporates 128 bytes of nonimprinting
memory, a battery-backup controller, system power moni-
tor, CPU supervisor, temperature sensor, and two tamper-
detection comparator inputs for interface to external
sensors, interlocks, or antitamper meshes. In the event of
primary power failure, an external battery power source
is automatically switched in to keep the tamper-detection
circuitry alive.
with Associated Reference
●ꢀ LatchesꢀStateꢀofꢀAllꢀTamper-DetectꢀComparatorsꢀ
●ꢀ Free-Running,ꢀ32-BitꢀElapsedꢀTimeꢀCounterꢀ
●ꢀ 4-Wire-CompatibleꢀInterfaceꢀ
●ꢀ ProgrammableꢀGlitchꢀFiltersꢀ
●ꢀ On-Chip,ꢀProgrammableꢀTemperatureꢀSensorꢀ
●ꢀ SystemꢀPowerꢀMonitorꢀforꢀDetectionꢀofꢀPower-Supplyꢀ
Attacks
●ꢀ Tamper-InterruptꢀOutputꢀ
●ꢀ IntegratedꢀCPUꢀSupervisorꢀ
●ꢀ Battery-BackupꢀControllerꢀ
Applications
●ꢀ PersonalꢀComputersꢀ
●ꢀ ProgrammableꢀUltra-LowꢀPowerꢀConsumption
• 1.5µA at +25°C (typ)
●ꢀ Gamingꢀ
●ꢀ LotteryꢀTerminalsꢀ
●ꢀ IndustrialꢀControlsꢀandꢀMonitoringꢀ
●ꢀ SecureꢀUSBꢀFlashꢀMemoryꢀDrivesꢀ
●ꢀ +3.0Vꢀtoꢀ+3.6VꢀSingle-SupplyꢀOperationꢀ
Typical Operating Circuit
+3.3V
Ordering Information appears at end of data sheet.
EXTERNAL
R
RPU
BATTERY PACK
V
CCI
V
BAT
RST
CE
RST
CPU
SCLK
DIN
4-WIRE
INTERFACE
DOUT
V
BAT
V
CCO
INT
MAX36051
R
IPU
USER-DEFINED/
OTHER
TAMPER-REACTIVE
CIRCUITS
IN2-
TAMPER
MONITOR
INPUTS
TINT
IN1+
GND
DeepCover is a trademark of Maxim Integrated Products, Inc.
119-0014; Rev 1; 12/11