GND
Mobile Phone, PMP, MP3
DVR(PVR), DVDP
SCL
SCL
SDA
C1
Set-Top Boxes (STBs)
Etc.(Most of electronic system using
u-Processor)
R1,R2 : 4.7KΩ, C1 : 0.1uF
< SOT-23-6L Package Type >
Pin Configuration
Encryption Flow
NC
1
6 VCC
5 VPP
4 SDA
Processor
ALPU-C
System Data
(8Bytes)
SOT-23-6L
GND 2
SCL 3
1.5mm x 2.9mm
Transmit
ENC Data
Advanced Product Information
ALPU-C&ALPU-CL
Algorithm License Permission Unit
Features
General Description
High performance illegal copy protection IC
The ALPU-C is the high-end IC among the ALPU series.
Its encryption core is based on Rijndeal AES-128 with
192-bits programmable parameters. It is a slave device
that always operates with MCU through the serial bus.
128bits encryption and decryption applied with
AES-128
128bits OTP cells for user serial code
IIC Serial Interface, Supporting up to 400 Kbps
3.3V(alpu-c)/1.8V(alpu-cl) Operation Voltage
Typical Operation Circuit
Built-
in
16 MHz OSC
Two Power Mode ( Active, Sleep )
3.3V (1.8V)
R1 R2
3.3V (1.8V)
Applications
DMB, Navigation
VCC
VPP
SDA
NC
TX_DATA
16Bytes
Receive
Data
Encryption
(16 Bytes)
Top View
Decryption
System
Data
Library
Cipher
Module
Ordering Information
Wait for next
command
Read request
Transmit
Cipher Text
16Bytes
Transmit
Result
Part
Operation Voltage
Package Type
SOT-23-6L
SOT-23-6L
Decryption
Compare
ENC Data
ALPU-C
ALPU-CL
3.3V
1.8V
Run Next
Process
Stand-by
Pass
System Halt
(false operation)
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1/21
ALPU-C/ALPU-CL Datasheet Ver 1.2
Advanced Product Information
ALPU-C&ALPU-CL
Algorithm License Permission Unit
Contents
1. Overview -------------------------------------------------------------
3
5
2. I/O Port ---------------------------------------------------------------
3. Clock Management ------------------------------------------------------
4. Power Mode -----------------------------------------------------------
5. Initialization ------------------------------------------------------------
6. Encryption ------------------------------------------------------------
7. One Time Programmable ROM ---------------------------------------------
8. Communication Interface --------------------------------------------------
9. Electrical Characteristic -------------------------------------------------
10. Typical Operation Circuit -------------------------------------------------
11. Package Information -----------------------------------------------------
7
7
8
9
13
13
16
18
19
12. Datasheet Revision History ------------------------------------------------ 20
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2/21
ALPU-C/ALPU-CL Datasheet Ver 1.2