Cypress CY7C63513C Computer Hardware User Manual


 
CY7C63413C
CY7C63513C
CY7C63613C
Document #: 38-08027 Rev. *B Page 26 of 32
Notes:
9. Per Table 7-7 of revision 1.1 of USB specification, for C
LOAD
of 50–600 pF.
10.Measured as largest step size vs. nominal according to measured full scale and zero programmed values.
11. T
ratio
= Isink1[1:0](n)/Isink0[7:2](n) for the same n, programmed.
12.Irange: Isinkn(15)/ Isinkn(0) for the same pin.
13.Measured at crossover point of differential data signals.
14.Limits total bus capacitance loading (C
LOAD
) to 400 pF per section 7.1.5 of revision 1.1 of USB specification.
15.DAC I/O Port not bonded out on CY7C63613C. See note on page 12 for firmware code needed for unused pins.
V
H
Input Hysteresis Voltage 6% 12% V
CC
All ports, HIGH to LOW edge
I
ol
Sink Current 7.2 16.5 mA Port 3, Vout = 1.0V (note 4)
I
ol
Sink Current 3.5 10.6 mA Port 0,1,2, Vout = 2.0V (note 4)
I
oh
Source Current 1.4 7.5 mA Voh = 2.4V (all ports 0,1,2,3) (note 4)
DAC Interface
R
up
Pull-up Resistance 8.0K 20.0K Ohms (note 14)
I
sink0(0)
DAC[7:2] Sink Current (0)
[15]
0.1 0.3 mA Vout = 2.0 VDC (note 5)
I
sink0(F)
DAC[7:2] Sink Current (F)
[15]
0.5 1.5 mA Vout = 2.0 DC (note 5)
I
sink1(0)
DAC[1:0] Sink Current (0)
[15]
1.6 4.8 mA Vout = 2.0 VDC (note 5)
I
sink1(F)
DAC[1:0] Sink Current (F)
[15]
8 24 mA Vout = 2.0 VDC (note 5)
I
range
Programmed Isink Ratio: max/min 4 6 Vout = 2.0 VDC (notes 5,12)
I
lin
Differential Nonlinearity 0.5 lsb Any pin (note 10)
t
sink
Current Sink Response Time 0.8 µs Full scale transition
T
ratio
Tracking Ratio DAC[1:0] to DAC[7:2] 14 21 Vout = 2.0V (note 11)
Switching Characteristics
Parameter Description Min. Max. Unit Conditions
Clock
t
CYC
Input Clock Cycle Time 165.0 168.3 ns
t
CH
Clock HIGH Time 0.45 t
CYC
ns
t
CL
Clock LOW Time 0.45 t
CYC
ns
USB Driver Characteristics
t
r
Transition Rise Time 75 ns CLoad = 50 pF
[5, 9]
t
r
Transition Rise Time 300 ns CLoad = 600 pF
5, 9]
t
f
Transition Fall Time 75 ns CLoad = 50 pF
[5, 9]
t
f
Transition Fall Time 300 ns CLoad = 600 pF
[5, 9]
t
rfm
Rise/Fall Time Matching 80 125 % t
r
/t
f
[5, 9]
V
crs
Output Signal Crossover Voltage 1.3 2.0 V Notes 5 and 9
USB Data Timing
t
drate
Low Speed Data Rate 1.4775 1.5225 Mbs Ave. Bit Rate (1.5 Mb/s ± 1.5%)
t
djr1
Receiver Data Jitter Tolerance –75 75 ns To Next Transition
[13]
t
djr2
Receiver Data Jitter Tolerance –45 45 ns For Paired Transitions
[13]
t
deop
Differential to EOP Transition Skew –40 100 ns Note 6
t
eopr1
EOP Width at Receiver 330 ns Rejects as EOP
[13]
t
eopr2
EOP Width at Receiver 675 ns Accepts as EOP
[13]
t
eopt
Source EOP Width 1.25 1.50 µs
t
udj1
Differential Driver Jitter –95 95 ns To next transition, Figure 12
t
udj2
Differential Driver Jitter –150 150 ns To paired transition, Figure 12
DC Characteristics Fosc = 6 MHz; Operating Temperature = 0 to 70°C (continued)
Parameter Min. Max. Unit Conditions
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