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PDF A20 Data sheet ( Hoja de datos )
| Número de pieza | A20 | |
| Descripción | Processor | |
| Fabricantes | Allwinner Technology | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de A20 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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A20
Datasheet
Revision 1.41
Dec 30, 2013
Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved.
1 page  
Overview
1 OVERVIEW
Allwinner A20 processor is a dual-core ARM Cortex-A7 mobile application solution designed for tablet and smart
TV applications.
A20 processor is based on a dual-core ARM Cortex-A7 CPU architecture, which is the most energy efficient ap-
plication processor from ARM so far and incorporates all the features of Cortex-A15. It also integrates the powerful
ARM Mali400 MP2 GPU, delivering a reliable system performance as well as good game compatibility. Besides,
A20 supports 2160p video decoding and H.264 HP 1080p video encoding.
Additionally, A20 processor features a wide range of interfaces and connectivity, including 4-CH CVBS in, 4-CH
CVBS out, HDMI with HDCP, VGA, LVDS/RGB LCD, SATA, USB, and GMAC, etc. More importantly, A20 proces-
sor is pin-compatible with its predecessor A10, which greatly simplifies the product design process and makes the
upgrade of a design much easier.
A20 Datasheet (Revision 1.41)
Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved.
Page 5
5 Page 
4
PIN DESCRIPTION
Pin Description
4.1. PIN CHARACTERISTICS
Following table describes the A20 pin characteristics from seven aspects: BALL#, Pin Name, Default
Function1, Type2, Reset State3, Default Pull Up/Down4, and Buffer Strength5.
BALL#
SDRAM
AC7
AC4
AC8
AB5
AB7
AB8
AB4
AC3
AA1
AC1
Y1
AB2
AC2
W2
AB3
Y2
T2
N2
U2
P1
T1
U1
N1
Pin Name
SDQ0
SDQ1
SDQ2
SDQ3
SDQ4
SDQ5
SDQ6
SDQ7
SDQ8
SDQ9
SDQ10
SDQ11
SDQ12
SDQ13
SDQ14
SDQ15
SDQ16
SDQ17
SDQ18
SDQ19
SDQ20
SDQ21
SDQ22
Default
Function
DRAM
DRAM
DRAM
DRAM
DRAM
DRAM
DRAM
DRAM
DRAM
DRAM
DRAM
DRAM
DRAM
DRAM
DRAM
DRAM
DRAM
DRAM
DRAM
DRAM
DRAM
DRAM
DRAM
Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Reset State
Default Pull
Buffer
Up/Down Strength (mA)
Z- -
Z- -
Z- -
Z- -
Z- -
Z- -
Z- -
Z- -
Z- -
Z- -
Z- -
Z- -
Z- -
Z- -
Z- -
Z- -
Z- -
Z- -
Z- -
Z- -
Z- -
Z- -
Z- -
Note:
1 Default function defines the default function of each pin, especially for pins with multiplexing functions;
2 There are five pin types here: O for output, I for input, I/O for input/output, A for analog,P for power and G for
ground;
3 Reset state defines the state of the terminal at reset: Z for high-impedance.
4 Default Pull up/down defines the presence of an internal pull up or pull down resistor. Unless otherwise speci-
fied, the pin is default to be floating, and can be configured as pull up or pull down;
5 Buffer strength defines the driver strength of the associated output buffer. It is tested in the condition that VCC=
3.3V, strength=MAX;
A20 Datasheet (Revision 1.41)
Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved.
Page 11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet A20.PDF ] | |
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