stm1404c STMicroelectronics, stm1404c Datasheet - Page 6

• Manufacturer Part Number: stm1404c
• Description: Security Supervisor With Battery Switchover
• Manufacturer: STMicroelectronics

Summary description
V
STM1404A
STM1404B
STM1404C
6/36
OUT
pin modes
The STM1404 family of security supervisors are a low power family of intrusion (tamper)
detection chips targeted at manufacturers of POS terminals and other systems, to enable
them to meet physical and/or environmental intrusion monitoring requirements as
mandated by various standards, such as Federal Information Processing Standards (FIPS)
Pub 140 entitled “Security Requirements for Cryptographic Modules,” published by the
National Institute of Standards and Technology, U.S. Department of Commerce), EMVCo,
ISO, ZKA, and VISA PED.
STM1404 will target the highest security level 4 and include both physical and
environmental (voltage and temperature) monitoring.
The STM1404 include Automatic Battery Switchover, RST Output (Open Drain), Manual
(Push-button) Reset Input (MR), Power-fail Comparator (PFI/PFO), Physical and/or
Environmental Tamper Detect/Security Alarm, and Battery Low Voltage Detect features.
The STM1404A also offers a V
is V
The STM1404 is available in three versions, corresponding to three modes of the V
(Supply Voltage Out), when the SAL (Security Alarm) is asserted (active-low) upon tamper
detection:
V
V
V
directly to the V
All variants (see
friendly, low profile, 16-pin QFN package.
OUT
OUT
OUT
TPU
stays ON (at V
is set to High-Z when SAL is driven low (activated).
is driven to Ground when SAL is activated (may be used when V
(internally switched V
CC
Table 1: Device
pin of the external SRAM that holds the cryptographic codes).
CC
or V
BAT
CC
REF
) when SAL is driven low (activated).
or V
options) are pin-compatible and available in a security-
(1.237V) as an option on pin 9. On STM1404B/C this pin
BAT
).
OUT
is connected
OUT
pin