CY8C3666LTI-050 Cypress Semiconductor Corp, CY8C3666LTI-050 Datasheet - Page 22

• Manufacturer Part Number: CY8C3666LTI-050
• Description: PSOC3
• Manufacturer: Cypress Semiconductor Corp
• Series: PSOC™ 3 CY8C36xxr

Specifications of CY8C3666LTI-050

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 67MHz
• Connectivity: EBI/EMI, I²C, LIN, SPI, UART/USART, USB
• Peripherals: CapSense, DMA, LCD, POR, PWM, WDT
• Number Of I /o: 25
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1.71 V ~ 5.5 V
• Data Converters: A/D 2x12b, D/A 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Processor Series: CY8C36
• Core: 8051
• Data Bus Width: 32 bit
• Data Ram Size: 8 KB
• Interface Type: I2C, SPI, UART, USB
• Maximum Clock Frequency: 67 MHz
• Number Of Programmable I/os: 28 to 72
• Number Of Timers: 4
• Operating Supply Voltage: 0.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

5.6 External Memory Interface
CY8C36 provides an external memory interface (EMIF) for
connecting to external memory devices. The connection allows
read and write accesses to external memories. The EMIF
operates in conjunction with UDBs, I/O ports, and other
hardware to generate external memory address and control
signals. At 33 MHz, each memory access cycle takes four bus
clock cycles.
5.7 Memory Map
The CY8C36 8051 memory map is very similar to the MCS-51
memory map.
5.7.1 Code Space
The CY8C36 8051 code space is 64 KB. Only main flash exists
in this space. See the
page 20.
Document Number: 001-53413 Rev. *K
PHUB
“Flash Program Memory”
Data,
Data,
Data,
Address,
and Control
Signals
Address,
and Control
Signals
Address,
and Control
Signals
IO IF
EM Control
Signals
section on
Figure 5-1. EMIF Block Diagram
EMIF
UDB
Data Signals
Address Signals
Control Signals
Signals
Other
Control
Figure 5-1
synchronous and asynchronous memories. The CY8C36
supports only one type of external memory device at a time.
External memory can be accessed through the 8051 xdata
space; up to 24 address bits can be used. See
page 24. The memory can be 8 or 16 bits wide.
5.7.2 Internal Data Space
The CY8C36 8051 internal data space is 384 bytes, compressed
within a 256-byte space. This space consists of 256 bytes of
RAM (in addition to the SRAM mentioned in
page 20) and a 128-byte space for Special Function Registers
(SFRs). See
banks of registers R0-R7. The next 16 bytes are bit-addressable.
DSI Dynamic Output
Control
DSI to Port
PORTs
PORTs
PORTs
IO
IO
IO
is the EMIF block diagram. The EMIF supports
Figure
External _ MEM_ ADDR[23:0]
External _ MEM_ DATA[15:0]
5-2. The lowest 32 bytes are used for four
PSoC
Control
®
3: CY8C36 Family
“Static RAM”
Data Sheet
xdata Space
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