CY7C68001(2004) Просмотр технического описания (PDF) - Cypress Semiconductor
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CY7C68001 Datasheet PDF : 42 Pages
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FO R
FO R
CY7C68001
Table 6-1. SX2 Pin Definitions (continued)
QFN SSOP
Pin Pin Name
Type Default
Description
18
SLRD
Input
N/A SLRD is the input-only read strobe with programmable polarity (POLAR.3) for the
slave FIFOs connected to FD[7:0] or FD[15:0].
29
SLWR
Input
N/A SLWR is the input-only write strobe with programmable polarity (POLAR.2) for
the slave FIFOs connected to FD[7:0] or FD[15:0].
29 36 FLAGA Output
H FLAGA is a programmable slave-FIFO output status flag signal.
Defaults to PF for the FIFO selected by the FIFOADR[2:0] pins.
30 37 FLAGB Output
H FLAGB is a programmable slave-FIFO output status flag signal.
Defaults to FULL for the FIFO selected by the FIFOADR[2:0] pins.
31 38 FLAGC Output
H FLAGC is a programmable slave-FIFO output status flag signal.
Defaults to EMPTY for the FIFO selected by the FIFOADR[2:0] pins.
13 20
IFCLK
I/O/Z
Z Interface Clock, used for synchronously clocking data into or out of the slave
FIFOs. IFCLK also serves as a timing reference for all slave FIFO control signals.
When using the internal clock reference (IFCONFIG.7=1) the IFCLK pin can be
configured to output 30/48 MHz by setting bits IFCONFIG.5 and IFCONFIG.6.
IFCLK may be inverted by setting the bit IFCONFIG.4=1. Programmable polarity.
14 21 Reserved Input N/A Reserved. Must be connected to ground.
44 51 WAKEUP Input
15 22
SCL
OD
16 23
SDA
OD
N/A USB Wakeup. If the SX2 is in suspend, asserting this pin starts up the oscillator
and interrupts the SX2 to allow it to exit the suspend mode. During normal
operation, holding WAKEUP asserted inhibits the SX2 chip from suspending. This
pin has programmable polarity (POLAR.7).
Z I2C Clock. Connect to VCC with a 2.2K-10 K Ohms resistor, even if no I2C
EEPROM is attached.
Z I2C Data. Connect to VCC with a 2.2K-10 K Ohms resistor, even if no I2C EEPROM
is attached.
55 6
7 14
11 18
17 24
27 34
32 39
43 50
53 4
56 7
10 17
12 19
26 33
28 35
41 48
VCC
VCC
VCC
VCC
VCC
VCC
VCC
GND
GND
GND
GND
GND
GND
GND
Power
Power
Power
Power
Power
Power
Power
Ground
Ground
Ground
Ground
Ground
Ground
Ground
N/A VCC. Connect to 3.3V power source.
N/A VCC. Connect to 3.3V power source.
N/A VCC. Connect to 3.3V power source.
N/A VCC. Connect to 3.3V power source.
N/A VCC. Connect to 3.3V power source.
N/A VCC. Connect to 3.3V power source.
N/A VCC. Connect to 3.3V power source.
N/A Connect to ground.
N/A Connect to ground.
N/A Connect to ground.
N/A Connect to ground.
N/A Connect to ground.
N/A Connect to ground.
N/A Connect to ground.
Document #: 38-08013 Rev. *E
Page 13 of 42
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