CY29FCT818T Diagnostic Scan Register Function, pinout drive
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CYPRESS
CY29FCT818T
Diagnostic Scan Register
Function, pinout drive compatible with FCT, Logic AM29818
FCT-C speed max. (Com'l) FCT-B speed max. (Com'l)
Reduced (typically 3.3V) versions equivalent functions
Edge-rate control circuitry significantly improved noise characteristics
Power-off disable feature
Matched rise fall times
Fully compatible with input output logic levels
Sink current (Com'l),
(Mil) Source current (Com'l), (Mil)
8-Bit pipeline shadow register
ESD> 2000V
Functional Description
FCT818T contains high-speed 8-bit general-purpose data pipeline register high-speed 8-bit shadow register. general-purpose register used 8-bit wide data path normal system application. shadow register designed applications, such diagnostics sequential circuits, where desirable load known data specific location circuit read data that location.
shadow registers load data from output FCT818T, used right-shift register with bit-serial input output SDO, using DCLK. data register input multiplexed enable loading from shadow register from data input pins using PCLK. Note that data loaded simultaneously from shadow register pipeline register, from pipeline register shadow register provided set-up hold time requirements satisfied with respect independent clock inputs.
typical application, general-purpose register FCT818T replaces 8-bit data register normal data path system. shadow register placed auxiliary bit-serial loop which used diagnostics. During diagnostic operation, data shifted serially into shadow register, then transferred general purpose register load known value into data path. read contents that point data path, data transferred from data register into shadow register, then shifted serially auxiliary diagnostic loop make accessible diagnostics controller. This data then compared with expected value diagnose faulty operation sequential circuit. outputs designed with poweroff disable feature allow live insertion boards.
Logic Block Diagram
DCLK-
8-BIT SHADOW REGISTER
S0-S7
PIPELINE REGISTER
Configurations
Po-P?
Y0-Y7
FCT816-1
DIP, SOIC, QSOP View
DCLK MODE
PCLK
9-17
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This Material Copyrighted Respective Manufacturer
CYPRESS;
Function Tablet1!
CY29FCT818T
Inputs Inputs Shadow Register Pipeline Register Operation
MODE DCLK PCLK
Si<-Sn Pi^Di Serial Shift; D7-D0 Output Disabled Load Pipeline Register from Data Input
Load Shadow Register from Output
Hold Hold Shadow Register; D7-D0 Output Enabled
Pi^Si Load Pipeline Register from Shadow Register
Maximum Ratings!2-3!
(Above which useful life impaired. user guidelines,
tested.)
Storage
Ambient Temperature with
Power Applied
Supply Voltage Ground Potential.-O.SV +7.0V
Input Voltage.-0.5V +7.0V
Output Voltage .-O.SV +7.0V
Output Current (Maximum Sink Current/Pin). Power Dissipation. 0.5W
Electrical Characteristics Over Operating Range
Static Discharge Voltage 2001V
(per MIL-STD-883, Method 3015)
Operating Range
Range Range Ambient Temperature
Commercial
Commercial
Military!4]
Parameter Description Test Conditions Min. Typ-ra Max. Unit
Output HIGH Voltage Vcc=Min., I0h=-32mA Com'I
Vcc=Min., Com'l
V(x=Mm., Ioh=
Output Voltage Iol=64 Com'l 0.55
Vcc=Min., Iql=20 0.55
Input HIGH Voltage
Input Voltage
Hysteresist6! inputs
Input Clamp Diode Voltage Vcc~Min., Iin= -0.7 -1.2
Input HIGH Current Vcc=Max.,
Input HIGH Current Vcc=Max., Vin=2.7V
Input Current Vcc=Max., VIN=0.5V
lozh State HIGH-Level Output Current VCc=Max., V0ut=2-7V
loZL State LOW-Level Output Current VCc=Max., Vout=0.5V
Output Short Circuit Current!7! VCc=Max., VOut=0.0V -120 -225
loFF Power-Off Disable Vcc=0V,VOUt=4.5V
Notes:
Applicable
Unless otherwise noted, these limits over operating free-air temperature range.
Unused inputs must always connected appropriate logic voltage level, preferably either ground.
"instant case temperature.
Typical values Vcc=S.0V, ambient.
This parameter guaranteed tested.
more than output should shorted time. Duration short should exceed second. high-speed test apparatus and/or sample hold techniques preferable order minimize internal chip heating more accurately reflect operational values. Otherwise prolonged shorting high output raise chip temperature well above normal thereby cause invalid readings other parameters tests. sequence parameter tests, tests should performed last.
9-18
25flTbb2 00157b7
This Material Copyrighted Respective Manufacturer
^Rtcypress
CY29FCT818T
Capacitance!6!
Parameter Description Test Conditions Typ-151 Max. Unit
Input Capacitance
COUT Output Capacitance
Power Supply Characteristics
Parameter Description Test Conditions Typ.[5J Max. Unit
Quiescent Power Supply Current Vcc=Max., Vin<0.2V, Vin>VCC-0-2V
Alec Quiescent Power Supply Current (TTL inputs HIGH) VCc=Max., V|N=3.4V,I8) Outputs Open
ICCD Dynamic Power Supply Current'9! =Max., Input Toggling, Duty Cycle, Outputs Open, OE=GND, 0.2V -0.2V 0.25
Total Power Supply Current!10! VCc=Max., f0=10 MHz, Duty Cycle, Outputs Open, Tbggling fi=5 MHz, OE=GND, 0.2V ViNaVcc-0.2V
f0=10 MHz, Duty Cycle, Outputs Open, Toggling fi=5 MHz, OE=GND, ViN=3.4V Vn^GND
VCc=Max., f0=10 MHz, Duty Cycle, Outputs Open, Eight Bits Four Controls Toggling, MHz, Vin<0.2Vor VIN>Vcc-0.2V 17.8t11!
Vcc=Max., MHz, Duty Cycle, Outputs Open, Eight Bits Four Controls Toggling, MHz, OE=GND, VIN=3.4V VIN=GND 30.8t11!
driven input (VjN=3.4V); other inputs GND.
This parameter directly testable, derived Total Power Supply calculations.
quiescent ^inputs ^dynamic fiNi)
Quiescent Current with CMOS input levels Alec Power Supply Current HIGH input
(ViN=3.4V) Duty Cycle inputs HIGH
Number inputs Dynamic Current caused input transition pair (HLH LHL)
Clock frequency registered devices, otherwise zero Input signal frequency Number inputs changing
currents rnilliamps frequencies megahertz. Values these conditions examples formula. These limits guaranteed tested.
9-19
GDlSVbfl
This Material Copyrighted Respective Manufacturer
CYPRESS
CY29FCT818T
Switching Characteristics Over Operating Range!12]
FCT818T FCT818AT
Military Commercial Military Commercial
Parameter Description Min.!13! Max. Min.l13) Max. Min.l13! Max. MinJ13! Max. Unit
Propagation Delay PCLK MODE DCLK
Set-Up Time PCLK MODE PCLK DCLK MODE DCLK DCLK DCLK PCLK PCLK DCLK
Hold Time PCLK MODE PCLK DCLK MODE DCLK DCLK
'PLZ Output Disable Time DCLK
tpHZ Output Disable Time HIGH DCLK
tpZL Output Enable Time DCLK
tpZH Output Enable Time HIGH DCLK
Pulse Width PCLK (HIGH LOW) DCLK (HIGH LOW)
Notes:
Characteristics guaranteed with shown Figure Minimum limits guaranteed tested Propagation Delays, "Parameter Measurement Information" General Infor- "Parameter Measurement Information" General Informa-mation Section". tion Section.
9-20
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This Material Copyrighted Respective Manufacturer
CYPRESS CY29Fcm8T
Switching Characteristics Over Operating Range!12! (continued)
Parameter Description FCT818BT FCT818CT Unit Fig. N0.P4]
Military Commercial Military Commercial
Min.!13! Max. Min.!13! Max. Min.!13] Max. Min.!13! Max.
Propagation Delay PCLK MODE DCLK 10.5 10.5 10.5
Set-Up Time PCLK MODE PCLK DCLK MODE DCLK DCLK DCLK PCLK PCLK DCLK 12.5 11.0 11.0
Hold Time PCLK MODE PCLK DCLK MODE DCLK DCLK
'PLZ Output Disable Time DCLK
tpHZ Output Disable Time HIGH DCLK 10.5 10.5
tpZL Output Enable Time DCLK 11.5 11.5 10.0 10.0 10.0 10.0
tpZH Output Enable Time HIGH DCLK 11.5 12.5 10.0 11.0 10.0 11.0
Pulse Width PCLK (HIGH LOW) DCLK (HIGH LOW)
9-21
0015770
This Material Copyrighted Respective Manufacturer
F^CYPRESS
CY29FCT818T
Speed <ns) Ordering Code Package Name Package Type Operating Range
CY29FCT818CTPC P13/13A 24-Lead (300-Mil) Molded Commercial
CY29FCT818CTQC 24-Lead (150-Mil) OSOP
CY29FCT818CTSOC 24-Lead (300-Mil) Molded SOIC
CY29FCT818BTPC P13/13A 24-Lead (300-Mil) Molded Commercial
CY29FCT818BTQC 24-Lead (150-Mil) QSOP
CY29FCT818BTSOC 24-Lead (300-Mil) Molded SOIC
CY29FCT818CTDMB 24-Lead (300-Mil) CerDIP Military
CY29FCT818CTLMB 28-Square Leadless Chip Carrier
CY29FCT818ATPC P13/13A 24-Lead (300-Mil) Molded Commercial
CY29FCT818ATOC 24-Lead (150-Mil) QSOP
CY29FCT818 ATSOC 24-Lead (300-Mil) Molded SOIC
CY29FCT818BTDMB 24-Lead (300-Mil) CerDIP Military
CY29FCT818BTLMB 28-Square Leadless Chip Carrier
12.0 CY29FCT818ATDMB 24-Lead (300-Mil) CerDIP Military
CY29FCT818 ATLMB 28-Square Leadless Chip Carrier
13.0 CY29FCT818TPC P13/13A 24-Lead (300-Mil) Molded Commercial
CY29FCT818TQC 24-Lead (150-Mil) QSOP
CY29FCT818TSOC 24-Lead (300-Mil) Molded SOIC
18.0 CY29FCT818TDMB 24-Lead (300-Mil) CerDIP Military
CY29FCT818TLMB 28-Square Leadless Chip Carrier
Document 38-00275-A
9-22
QQ15771
This Material Copyrighted Respective Manufacturer
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