CYWUSB6935-48LFI Cypress Semiconductor Corp, CYWUSB6935-48LFI Datasheet - Page 26

• Manufacturer Part Number: CYWUSB6935-48LFI
• Description: IC USB WIRELESS 2.4GHZ 48VQFN
• Manufacturer: Cypress Semiconductor Corp

Specifications of CYWUSB6935-48LFI

• Frequency: 2.4GHz
• Data Rate - Maximum: 62.5kbps
• Modulation Or Protocol: DSSS, GFSK
• Applications: AMR, ISM, RKE
• Power - Output: 0dBm
• Sensitivity: -95dBm
• Voltage - Supply: 2.7 V ~ 3.6 V
• Current - Receiving: 57.7mA
• Current - Transmitting: 69.1mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-VQFN Exposed Pad, 48-HVQFN, 48-SQFN, 48-DHVQFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Memory Size: -
• Other names: 428-1578

12.0
Table 12-1. SPI Interface
Notes:
Document 38-16008 Rev. **
13. AC values are not guaranteed if voltages on any pin exceed Vcc.
14. This stretch only applies to every 9th SCK HI pulse for SPI Burst Reads only.
15. For F
16. SCK must start low, otherwise the success of SPI transactions are not guaranteed.
t
t
t
t
t
t
t
t
t
SCK_HI (BURST READ)
SCK_CYC
SCK_HI
SCK_LO
DAT_SU
DAT_HLD
DAT_VAL
SS_SU
SS_HLD
M ISO
M O S I
M IS O
SCK
S C K
SS
Parameter
S S
OSC
AC Characteristics
= 13 MHz, 3.3v @ 25°C.
t
D A T _ S U
t
S S _ S U
[14]
data to m cu
d a ta fro m m c u
SPI Clock Period
SPI Clock High Time
SPI Clock High Time
SPI Clock Low Time
SPI Input Data Set-up Time
SPI Input Data Hold Time
SPI Output Data Valid Time
SPI Slave Select Set-up Time before first positive edge of SCK
SPI Slave Select Hold Time after last negative edge of SCK
every 8
Figure 12-2. SPI Burst Read Every 9th SCK HI Stretch Timing Diagram
[15]
t
SCK_HI
th
SC K_HI
t
S C K _ H I
t
[13]
D A T _ H L D
t
SCK_CYC
t
S C K _ C Y C
t
DAT_VAL
t
Figure 12-1. SPI Timing Diagram
SCK_LO
t
PRELIMINARY
S C K _ L O
Description
t
D A T _ V A L
d a ta fro m m c u
d a ta to m c u
data to m cu
t
SC K_HI (BU RST READ)
every 9
th
SC K_HI
[16]
d a ta fro m m c u
d a ta to m c u
97
77
Min.
476
238
158
158
250
10
80
data to m cu
[15]
[15]
every 10
Typ.
CYWUSB6935
th
SCK_HI
t
S S _ H L D
174
Max.
Page 26 of 32
[15]
d a ta
d a ta
data
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns