CY8C20234 (IC301)
Block Diagram
Pin Discription
CY8C20134, CY8C20234, CY8C20334
CY8C20434, CY8C20534, CY8C20634
Document Number: 001-05356 Rev. *Q
Page 12 of 48
16-Pin Part Pinout
Figure 5. CY8C20234 16-Pin PSoC Device
Table 5. Pin Definitions – CY8C20234 16-Pin (QFN no e-pad)
Pin No.
Type
Name
Description
Digital
Analog
1
I/O
I
P2[5]
2
I/O
I
P2[1]
3
I
OH
I
P1[7]
I
2
C SCL, SPI SS
4
I
OH
I
P1[5]
I
2
C SDA, SPI MISO
5
I
OH
I
P1[3]
SPI CLK
6
I
OH
I
P1[1]
CLK
[6]
, I
2
C SCL, SPI MOSI
7
Power
V
SS
Ground connection
8
I
OH
I
P1[0]
DATA
[6]
, I
2
C SDA
9
I
OH
I
P1[2]
10
I
OH
I
P1[4]
Optional external clock input (EXTCLK)
11
Input
XRES
Active high external reset with internal pull-down
12
I/O
I
P0[4]
13
Power
V
DD
Supply voltage
14
I/O
I
P0[7]
15
I/O
I
P0[3]
Integrating Input
16
I/O
I
P0[1]
A = Analog, I = Input, O = Output, OH = 5 mA High Output Drive
QFN
(Top View)
AI, P2[5]
AI, I2C SCL, SPI SS, P1[7]
AI, I2C SDA, SPI MISO, P1[5]
AI
, SPI CL
K,
P1[
3]
1
2
3
4
11
10
9
16
15
14
13
P0
[3]
, A
I
P0
[7]
, A
I
V
DD
P0[4], AI
C
LK
, I2
C
S
C
L, S
PI
M
O
SI
P
1[
1]
AI
, D
ATA
, I
2C
SD
A,
P
1[0
]
P1[2], AI
AI, P2[1]
P1[4], AI, EXTCLK
XRES
P0
[1]
, A
I
V
SS
12
5
6
7
8
Note
6. These are the ISSP pins, that are not High Z at POR (Power-on-Reset). See the
PSoC Technical Reference Manual
for details.
CY8C20134, CY8C20234, CY8C20334
CY8C20434, CY8C20534, CY8C20634
PSoC
®
Programmable System-on-Chip™
Cypress Semiconductor Corporation
•
198 Champion Court
•
San Jose
,
CA 95134-1709
•
408-943-2600
Document Number: 001-05356 Rev. *Q
Revised June 15, 2012
PSoC
®
Programmable System-on-Chip™
Features
■
Low power CapSense
®
block
❐
Configurable capacitive sensing elements
❐
Supports combination of CapSense buttons, sliders,
touchpads, and proximity sensors
■
Powerful Harvard-architecture processor
❐
M8C processor speeds running up to 12 MHz
❐
Low power at high speed
❐
Operating voltage: 2.4 V to 5.25 V
❐
Industrial temperature range: –40 °C to +85 °C
■
Flexible on-chip memory
❐
8 KB flash program storage 50,000 erase/write cycles
❐
512-Bytes SRAM data storage
❐
Partial flash updates
❐
Flexible protection modes
❐
Interrupt controller
❐
In-system serial programming (ISSP)
■
Complete development tools
❐
Free development tool (PSoC Designer™)
❐
Full-featured, in-circuit emulator, and programmer
❐
Full-speed emulation
❐
Complex breakpoint structure
❐
128 KB trace memory
■
Precision, programmable clocking
❐
Internal ±5.0% 6- / 12-MHz main oscillator
❐
Internal low speed oscillator at 32 kHz for watchdog and sleep
■
Programmable pin configurations
❐
Pull-up, high Z, open-drain, and CMOS drive modes on all
GPIOs
❐
Up to 28 analog inputs on all GPIOs
❐
Configurable inputs on all GPIOs
❐
20-mA sink current on all GPIOs
❐
Selectable, regulated digital I/O on port 1
• 3.0 V, 20 mA total port 1 source current
• 5 mA strong drive mode on port 1 versatile analog mux
❐
Common internal analog bus
❐
Simultaneous connection of I/O combinations
❐
Comparator noise immunity
❐
Low-dropout voltage regulator for the analog array
■
Additional system resources
❐
Configurable communication speeds
• I
2
C: selectable to 50 kHz, 100 kHz, or 400 kHz
• SPI: configurable between 46.9 kHz and 3 MHz
❐
I
2
C slave
❐
SPI master and SPI slave
❐
Watchdog and sleep timers
❐
Internal voltage reference
❐
Integrated supervisory circuit
SRAM
512 Bytes
System Bus
Interrupt
Controller
6/12 MHz Internal Main Oscillator
Global Analog Interconnect
PSoC
CORE
CPU Core
(M8C)
SROM
Flash 8K
SYSTEM RESOURCES
ANALOG
SYSTEM
Analog
Ref.
I2C Slave/SPI
Master-Slave
POR and LVD
System Resets
Port 1 Port 0
Sleep and
Watchdog
Analog
Mux
Port 3 Port 2
CapSense
Block
Config LDO
Logic Block Diagram
Pin No.
Type
Name
Description
Digital
Analog
1
I/O
I
P2[5]
2
I/O
I
P2[1]
3
I
OH
I
P1[7]
I
2
C SCL, SPI SS
4
I
OH
I
P1[5]
I
2
C SDA, SPI MISO
5
I
OH
I
P1[3]
SPI CLK
6
I
OH
I
P1[1]
CLK
[6]
, I
2
C SCL, SPI MOSI
7
Power
V
SS
Ground connection
8
I
OH
I
P1[0]
DATA
[6]
, I
2
C SDA
9
I
OH
I
P1[2]
10
I
OH
I
P1[4]
Optional external clock input (EXTCLK)
11
Input
XRES
Active high external reset with internal pull-down
12
I/O
I
P0[4]
13
Power
V
DD
Supply voltage
14
I/O
I
P0[7]
15
I/O
I
P0[3]
Integrating Input
16
I/O
I
P0[1]
A = Analog, I = Input, O = Output, OH = 5 mA High Output Drive
79
