CY8C26643-24AI Cypress Semiconductor Corp, CY8C26643-24AI Datasheet - Page 76

• Manufacturer Part Number: CY8C26643-24AI
• Description: IC MCU 16K FLASH 256B 44LQFP
• Manufacturer: Cypress Semiconductor Corp
• Series: PSOC™ CY8C26xxxr

Specifications of CY8C26643-24AI

• Core Processor: M8C
• Core Size: 8-Bit
• Speed: 24MHz
• Connectivity: SPI, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 40
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.25 V
• Data Converters: A/D 1x8b, 1x11b, 1x12b; D/A 1x9b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: 428-1431; 428-1431-5; 428-1431

divided into distinct bit fields. Some bit fields set the
PSoC block's resistor ratios or capacitor values. Others
configure switches and multiplexers that form connec-
tions between internal block nodes. Additionally, a block
may be connected via local interconnection resources to
neighboring analog PSoC blocks, reference voltage
sources, input multiplexers and output busses. Specific
advantages and applications of each type are treated
separately below.
10.7.1 Local Interconnect
Analog continuous-time PSoC blocks occupy the top
row, (row 0) of the analog array. Designated ACA for
analog continuous-time subtype "A," each connects to its
10.7.1.1
76
NMux
AGND
AGND
REFLO
(3)
(1)
(2)
ACA
ASA
ASB
(5)
(3)
(4)
00
10
20
Cypress MicroSystems CY8C25122/CY8C26233/CY8C26443/CY8C26643 Family Data Sheet
Document #: 38-12010 CY Rev. ** CMS Rev. 3.20
(6)
(3)
(0)
REFHI
Figure 17: NMux Connections
(0)
(3)
(6)
N (Inverting) Input Multiplexer Connections
ACA
ASB
ASA
(3)
(4)
01
11
21
(5)
(2)
(1)
REFLO
AGND
(2)
(1)
neighbors by means of three multiplexers. (Note that
unlike the switched capacitor blocks, the continuous time
blocks in the current family of parts only have one sub-
type.) The three are the non-inverting input multiplexer,
"PMux," the inverting input multiplexer, "NMux," and the
"RBotMux" which controls the node at the bottom of the
resistor string. The bit fields, which control these multi-
plexers, are named PMux, NMux, and RBotMux, respec-
tively.
multiplexer connects its ACA block connect to its neigh-
bors. Each arrow points from an input source, either a
PSoC block, bus or reference voltage to the block where
it is used. Each arrow is labeled with the value to which
the bit-field must be set to select that input source.
ACA
ASA
ASB
(5)
(3)
(4)
02
12
22
The
(6)
(3)
(0)
REFHI
following
(0)
(3)
(6)
ACA
ASA
ASB
(3)
(4)
03
23
13
(5)
diagrams
(3)
(1)
(2)
REFLO
AGND
show
September 5, 2002
how
each