ST ST33TPM12LPC User Manual
ST33TPM12LPC
TSSOP28
VQFN32
Trusted Platform Module with
LPC interface based on 32-bit ARM® SecurCore® SC300™ CPU
Data brief
Features
TPM features
■ Single-chip Trusted Platform Module (TPM)
■ Compliant with Trusted Computing Group
(TCG) Trusted Platform Module (TPM) Main
specifications 1.2, Level 2, Revision 116
■ Compliant with TCG PC Client Specific TPM
Interface Specifications 1.21
■ Targeting security certification based on
certified TPM Protection Profile (Revision 116)
with Evaluation Assurance Level (EAL) 4+
■ 33-MHz Low Pin Count (LPC) interface V1.1
■ Provisioned with Endorsement key and
Endorsement Key certificate
■ Support of clock suspension for power saving
mode
■ Support of Field Upgrade and Dictionary Attack
protection
■ Monotonic counter endurance guaranteed for
7 years
■ Support of software and hardware physical
presence
Hardware features
■ ARM® SecurCore® SC300™ 32-bit RISC core
■ Highly reliable CMOS EEPROM submicron
technology
– 30-year data retention at 25° C
– 500,000 Erase/Write cycles endurance
typical at 25° C
■ Temperature range: 0°C to +70°C
■ ESD protection up to 4 kV (HBM)
■ 3.3 V supply voltage range
■ 28-lead thin shrink small outline and 32-lead
very thin fine pitch quad flat pack ECOPACK®
packages
Security features
■ Active shield and environmental sensors
■ Memory protection unit (MPU)
■ Monitoring of environmental parameters
(power and clock)
■ Hardware and software protection against fault
injection
■ AIS-31 Class P2 compliant true random
number generator (TRNG)
■ Cryptographic algorithms:
– RSA key generation from 512 to 2048 with
a 2-byte step
– RSA signature and encryption
– SHA-1 and SHA-256
– AES-128 in CTR mode
Performance and resource features
■ SHA1 computation for 64-byte block: 155 µs
■ Signature with a 2048-bit key: 150 ms
■
Signature with a 1024-bit key: 30 ms
■
NV storage allocated space: 4 Kbytes
(1.2 Kbytes used by EK certificate)
■ Supported 2048-bit key slots:
– up to 10 key slots (without EK and SRK)
– 1 key slot in volatile memory for high
frequency loading use case
a. Typical value with clock configuration in secure mode
without communication time.
(a)
(a)
(a)
December 2011 Doc ID 022203 Rev 2 1/11
For further information contact your local STMicroelectronics sales office.
www.st.com
11
Description ST33TPM12LPC
1 Description
The ST33TPM12LPC is a cost-effective and high performance Trusted Platform Module
(TPM).
This device implements the functions defined by the Trusted Computing Group
(www.trustedcomputinggroup.org) in the TCG Trusted Platform Module Specifications
version 1.2 Level 2 Revision 116, the TCG PC Client specific TPM interface specifications
1.21 and the PC Client implementation specification for conventional BIOS.
The ST33TPM12LPC is based on a secure MCU hardware platform.
The ST33TPM12LPC is built on a 32-bit ARM® reduced instruction set computing (RISC)
processor which provides high cryptographic and general performances. A crypto-processor
NESCRYPT is also present to support efficiently all public key cryptographic algorithms.
1.1 Hardware features
The ST33TPM12LPC is based on a smartcard-class secure MCU that incorporates the
most recent generation of ARM processors for embedded secure systems. Its SecurCore®
SC300™ 32-bit RISC core is built on the Cortex™ M3 core with additional security features
to help to protect against advanced forms of attacks.
Cadenced at 30 MHz, the SC300™ core brings great performance and excellent code
density thanks to the Thumb®-2 instruction set.
The ST33TPM12LPC offers an LPC (Low Pin Count) communication interface compatible
with Low Pin Count interface specification v1.1.
Three general purpose 16-bit timers are available; one configurable as a watchdog. An
additional 24-bit timer is available in the CPU cadenced with the CPU clock.
The ST33TPM12LPC features hardware accelerators for advanced cryptographic functions.
The EDES peripheral provides a secure DES (Data Encryption Standard) algorithm
implementation, while the NESCRYPT crypto-processor efficiently supports the public key
algorithm.
The ST33TPM12LPC operates in the 0 to +70°C temperature and 3.3V supply voltage
ranges.
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and device status are available at: www.st.com.
ECOPACK® is an ST trademark.
2/11 Doc ID 022203 Rev 2
ST33TPM12LPC Description
Figure 1. ST33TPM12LPC block diagram
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Doc ID 022203 Rev 2 3/11
Pin and signal description ST33TPM12LPC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
NC
NC
NC
GND
NC
NC
PP
VNC
VNC
VPS
GND
NC
NC
NC
LPCPD
SERIRQ
LAD0
NC
VPS
LAD1
LFRAME
LCLK
LAD2
NC
NC
LRESET
GND
LAD3
TSSOP28
1
2
3
4
5
6
7
8
9 1011121314
28 27 26 25
24
23
22
21
20
19
18
17
1615
GND
NC
NC
NC
NC
PP
VNC
VNC
VPS
GND
NCNCNC
LPCPD
SERIRQ
LAD0NCVPS
LAD1
LFRAME
LCLK
LAD2
NC
NC
LRESET
GND
LAD3
QFN32
29303132
NC
NC
NC
NC
NC
2 Pin and signal description
2.1 Pinout descriptions
Figure 2. TSSOP28 pinout
Figure 3. QFN32 pinout
4/11 Doc ID 022203 Rev 2
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